When sand and water are mixed in a beaker, the sand is mixed into the water. However, if you stop stirring, the sand will settle down to the bottom. This mixture is a

a
solution
b
suspension
c
colloid
d
solute

Answers

Answer 1
the answer is b) suspension

Related Questions

What is a neutral atom and has 14 protons?

Answers

A neutral atom and has 14 protons is Silicon

Each of the elements in the Periodic Table has an individual atomic number, or a specific number of protons in its nucleus.

The total number of protons that make up an atom's nucleus is represented by the atomic number of that atom, as is well known. We know that an atom has proton of 14, so the atomic number  of that neutral atom is 14. we can check on the periodic table an atom that have 14 atomic number is silicon.

Therefore, the neutral atom and has 14 protons is Silicon

Learn more about proton at https://brainly.com/question/1379579

#SPJ4

The measured electric mobilities of K+ (aq) and Cl– (aq) at a KCl concentration of 0.30 mol L–1 are respectively, 5.9  10 –4 and 6.14  10–4 cm2 V–1 s–1 at 30 OC. Calculate the transport numbers and molar ionic conductivity of K+ and Cl–. What is the molar conductivity of KCl at this concentration? Assume complete ionisation of KCl.

Answers

The molar conductivity of KCl at this concentration and  transport numbers and molar ionic conductivity of K+ and Cl– are

Λm =1.806×10−4 t(K+)=4.90033223×10^−9 t(Cl-) =5.09966777×10^−9

What is the molar conductivity of KCl at this concentration?

Generally, The transport number, t, of an ion can be calculated using the equation: t = (μi x Ci) / Λm,

where

tμi is the electric mobility of the ion, Ci is the concentration of the ion, and Λm ishe molar conductivity of the electrolyte solution.

Given that the electric mobility of

K+ is 5.9 x 10^-4 cm^2 V^-1 s^-1, the electric mobility of Cl- is 6.14 x 10^-4 cm^2 V^-1 s^-1, and the concentration of KCl is 0.30 mol L^-1, we can calculate the transport numbers as:

t(K+) = (5.9 x 10^-4 cm^2 V^-1 s^-1 x [K+]) / Λm t(Cl-)

= (6.14 x 10^-4 cm^2 V^-1 s^-1 x [Cl-]) / Λm

where

[K+] and [Cl-] are the molar concentrations of K+ and Cl- ions, respectively.

The molar ionic conductivity, Λi, of an ion can be calculated using the equation: Λi = μi x Ci,

where

μi is the electric mobility of the ion and Ci is the concentration of the ion.

Given that the electric mobility of K+ is 5.9 x 10^-4 cm^2 V^-1 s^-1 and the concentration of K+ is 0.15 mol L^-1, the molar ionic conductivity of K+ is:

Λ(K+) = 5.9 x 10^-4 cm^2 V^-1 s^-1 x 0.15 mol L^-1

Λ(K+) =8.85×10−5

Similarly, given that the electric mobility of

Cl- is 6.14 x 10^-4 cm^2 V^-1 s^-1 and the concentration of Cl- is 0.15 mol L^-1, the molar ionic conductivity of Cl- is:

Λ(Cl-) = 6.14 x 10^-4 cm^2 V^-1 s^-1 x 0.15 mol L^-1

Λ(Cl-) =9.21×10^−5

Finally, the molar conductivity of KCl can be calculated as:

Λm = Λ(K+) + Λ(Cl-)

=9.21×10^−5+8.85×10^−5

Λm =1.806×10−4

The transport numbers of K+ and Cl- can be calculated by

t(K+) = Λ(K+) / Λm and

t(Cl-) = Λ(Cl-) / Λm respectively.

t(K+) = 8.85×10−5/1.806×10−4 '

t(K+)=4.90033223×10^−9

and

t(Cl-) =9.21×10^−5/1.806×10−4

t(Cl-) =5.09966777×10^−9

Read more about molar conductivity

https://brainly.com/question/26097545

#SPJ1

How many times more acidic is a solution with a pH of 2 compared with one with a pH of 5 Explain.

Answers

Using a logarithmic scale with 7 as neutral, lower values are more acidic and higher values are more alkaline, the acidity or alkalinity of a solution is expressed. where c is the number of moles of hydrogen ions present per litre. So pH 2 is 1000 times stronger than pH 5, and vice versa.

A pH of 2 is how much more acidic than a pH of 5.

For instance, a pH of 2 is 10,000 times more acidic than a pH of 3 and a pH of 5 is 10,000 times more acidic. Ten times as alkaline as a pH of 10 is a pH of 11.

How many times more acidic is a pH 2 solution compared to a pH 9 solution?

Each whole pH value is ten times more acidic than the next higher value since the pH scale is logarithmic.

To know more about pH visit:-

https://brainly.com/question/15289741

#SPJ1

Exercise 3.1 Evaporation
In this exercise, you will think about what evaporation is and how it happens.
1 Complete these sentences. Choose the correct word when there
is a choice.
Evaporation occurs when a
turn into a
The particles in the liquid
turns into a
gain/lose
and move faster/slower and closer
together/further apart until some of them escape from the surface and
become a

Answers

Evaporation occurs when a liquid turns into vapour . The particles in the liquid gain energy and move faster and further until some of them escape from the surface and become a vapour

What is Evaporation ?A type of vaporisation called evaporation takes place on the surface of a liquid as it transitions into the gas phase. When humidity impacts the rate of evaporation of water, for example, a high concentration of the evaporating substance in the surrounding gas considerably slows down evaporation.A liquid transforms into a gas during evaporation. It is simple to picture when puddles of rain "vanish" on a hot day or when wet clothing dries in the sun. In these instances, the liquid water is evaporating into a gas known as water vapour rather than really dissipating. Global evaporation takes place.Evaporation occurs on surfaces. The top layer of the liquid evaporates because the molecules with the highest kinetic energy escape into the air, causing it to become lighter.

To learn more about Evaporation refers to:

brainly.com/question/24258

#SPJ1

What is the molecular formula of a compound whose empirical formula is CH4 and has a molar mass is 32. 086 g/mole?

Answers

The molecular formula of a compound whose empirical formula is CH4 and has a molar mass is 32. 086 g/mole is C

The molecular formula of a compound is the actual number and types of atoms that make up a molecule. It gives the exact number of atoms of each element in a molecule.

On the other hand, the empirical formula of a compound represents the simplest whole number ratio of atoms that make up a compound. It gives the lowest whole number ratio of atoms of each element in a molecule.

Multiply the subscripts in the empirical formula by a factor needed to reach the molar mass of the compound. In this case, CH4 has a molar mass of 16.04 g/mol and the compound has a molar mass of 32.086 g/mol.

32.086 g/mol/16.04 = 2

Multiplying the subscripts by 2, the molecular formula of the compound is C2H8.

Learn more about molecular formula here: https://brainly.com/question/20146794

#SPJ4

How many moles of hydrogen (H2) are required to completely reduce 1 mole of cis-2,3,3- trimethylhepta-1,5-diene

Answers

2 moles of hydrogen (H2) are required to completely reduce 1 mole of cis-2,3,3- trimethylhepta-1,5-diene (C11H16).

What is moles?

Moles, in chemistry, is a unit of measurement used to express the amount of a substance. It is equal to 6.022 x 1023 atoms, molecules, ions, or other particles. In other words, a mole contains an exact number of particles, which is known as Avogadro's number. The mole is a convenient way to measure and compare large amounts of a substance. It is also used to measure the amount of energy released or absorbed in a chemical reaction.

To learn more about moles
https://brainly.com/question/15356425
#SPJ4

A 25.0 mL sample of a saturated Ca(OH)2 solution is titrated with 0.028 M HCl, and the equivalence point is reached after 38.1 mL of titrant are dispensed. Based on this data, what is the concentration (M) of the hydroxide ion

Answers

The concentration of hydroxide ions in the solution is 0.0428 M.

Ions are what?

A molecule or atom that has a net electrical charge is called an ion.

The balanced equation for the reaction between HCl and Ca(OH)2 is:

Ca(OH)2 + 2HCl -> CaCl2 + 2H2O

The number of moles of HCl added at the equivalence point can be found by multiplying the volume of HCl added (in liters) by its concentration in moles/liter:

moles HCl = (38.1 mL HCl x 0.028 mol/L HCl) / 1000 mL/L = 0.00107 mol HCl

The concentration of hydroxide ions can be found by dividing the number of moles of hydroxide ions by the volume of the solution:

[OH-] = moles OH- / L of solution

We know that the number of moles of HCl added is equal to the number of moles of OH- present, so:

[OH-] = 0.00107 mol OH- / (25.0 mL / 1000 mL/L) = 0.0428 M

Therefore, the concentration of hydroxide ions in the solution is 0.0428 M.

To know more about electrical charge visit: https://brainly.com/question/28457915

#SPJ4

A sample of an unknown gas at STP has a density of 0.630 grams per liter. What is the gram molecular mass of this gas?

Answers

Density is an intensive property as it does not depend on the quantity of the substances Whereas mass and volume are extensive property. Therefore, 0.630 is the gram molecular mass of this gas.

What is density?

Density tells about the compactness of the substances, how much dense is the substances in other words. Object that is more denser than water they just sink in the water.

Mathematically,

Density = Mass of the gas ÷volume marked on the graduated cylinder

density= 0.630 grams per liter

means 0.630 grams of an unknown gas is present in 1 liter of solution

Therefore, 0.630 is the gram molecular mass of this gas.

To know more about density, here:

https://brainly.com/question/16894337

#SPJ1

Why does c14 have 8 neutrons?

Answers

C14 have 8 neutrons, because C have 6 atomic number and it have 14 atomic mas , where atomic mass is total of proton and neutron so the neutron of C14 is 8.

It is commonly known that Carbon-14 is an isotope of carbon. It is also known as a neutral atom. Additionally, the ratio of neutrons to protons varies among different isotopes.

The total number of protons that make up an atom's nucleus is represented by the atomic number of that atom, as is well known. We know that carbon has an atomic number of 6, a mass number of 14. It is common knowledge that mass is the product of protons and neutrons. There will thus be = 14 - 6 = 8 neutrons.

Learn more about neutron at brainly.com/question/29248303

#SPJ4

Early chemists, known at the time as alchemists, had a difficult time understanding the Law of Conservation of Mass. Using the burning of wood as an example, what property of matter made this law difficult for early scientists to understand?

Different types of wood burned differently.

Wood is heavier than ash.

The fire was too bright to observe the reaction.

The gases produced escaped to the atmosphere.

Answers

Answer:

The gases produced escaped to the atmosphere.

Which is the best way to prepare 3-methoxypentane via the Williamson method? ( please explain why)
A). CH3OH + CH3CH2CHOHCH2CH3 + H2SO4, 140'C
B). CH3OH + (CH3)2 CHCH2CH2OH+ H2SO4, 140' C
C). CH3ONa + (CH3CH2)2CHBr
D). CH3 I + (CH3CH2)2CHONa

Answers

The best way to prepare 3-methoxypentane via the Williamson method is : D). CH3 I + (CH3CH2)2CHONa.

What is Williamson method?

The most used technique for making ethers is the Williamson ether synthesis. A metal alkoxide displaces a halide ion from an alkyl halide in an SN2 reaction, which is how it happens. An alcohol and a potent base, such as sodium hydride, react to form the alkoxide ion.

Williamson synthesis is employed in the creation of both simple and mixed ethers. Alcoholic sodium or potassium alkoxide is heated with alkyl halide to create the appropriate ethers. ROR+NaX ROR+ONa+X. Methyl iodide produces dimethyl ether when heated in the presence of alcoholic sodium methoxide.

To know more about Williamson method, refer

https://brainly.com/question/19424988

#SPJ4

A gas mixture containing oxygen, nitrogen, and He has a total pressure of 189.9 kPa. If PO2 = 104.6 kPa and PN2 = 13.0 kPa, what is PHe ?

Answers

A gas mixture containing oxygen, nitrogen, and He has a total pressure of 189.9 kPa. If PO2 = 104.6 kPa and PN2 = 13.0 kPa, PHe is 72.3 kPa.

What is total pressure ?

Static pressure and velocity pressure are added to create total pressure. There is static pressure in a fluid that is not flowing. The pressure required to accelerate air from a zero velocity to a specific velocity that is proportional to the kinetic energy of the air stream is known as velocity pressure.

Consider the friction that exists between a fluid and the interior surface of a pipe. The fluid's density and velocity are used to compute the dynamic pressure: the total pressure in a mixture of ideal gases is the total of the partial pressures of the individual gases.

Total pressure = PO2  + PN2 + PHe

189.9 kPa = 104.6 kPa + 13.0 kPa + PHe

PHe = 72.3 kPa

Thus, A gas mixture containing oxygen, nitrogen, and He has a total pressure of 189.9 kPa. If PO2 = 104.6 kPa and PN2 = 13.0 kPa,PHe is  72.3 kPa.

To learn more about total pressure, follow the link;

https://brainly.com/question/15060031

#SPJ1

A 70g chunk of metal at 180C was dropped in a bucket containing 400g of water at 25C. The final temperature of the mixture was 28C. What is the specific heat capacity of the metal

Answers

Thus, the metal has a mhm specific heat capacity of 2.472 Joel program degrees Celsius.

To calculate the temperature change (T), subtract the end temperature from the initial temperature. Multiply the temperature change by the sample's mass. Share the product's energy and heat output. The equation is C = Q / (T m). The amount of heat energy per unit mass needed to raise the temperature by one degree Celsius is known as the specific heat. The form given below, where c is the specific heat, is typically used to express the relationship between heat and temperature change. Let S represent the water's specific heat capacity. Consequently, the combined temperature of 50g of water at 20°C and 50g of water.

Learn more about temperature here-

https://brainly.com/question/5421090

#SPJ4

What molecule solid would have the highest melting point?

Answers

Answer:

Explanation:

They are Covalent networks solids

What is called proton number?

Answers

Proton number is called atomic number.

The chemical element's atomic number, also referred to as the nuclear charge number, is determined by the charge number of an atomic nucleus. This is the quantity of protons in the nucleus of each of that element's atoms. The atomic number refers to the number of protons in the nucleus of an atom. The amount of protons in an element determines what kind of element it is.

Both protons and electrons are equal in number in a neutral atom. The mass of an atom, represented by the letter M, is equal to the total of its protons and neutrons in the nucleus.

The number of protons in the atom's nucleus is therefore equal to the atomic number (Z). in an uncharged atom.

Learn more about atomic numbers:

brainly.com/question/16858932

#SPJ4

The down-slope movement of material on Earth is called a slope failure. It is the failure of the slope resulting in transport of debris downhill by
sliding, rolling, falling, or slumping. This is an example of slope failure called

Answers

To solve this we must be knowing each and every concept related to  landslides. Therefore, the given process describe the landslides process.

What is landslides?

Slope collapses are essentially natural calamities that occur in a variety of locations across the world. Slope failures, often known as landslides, define a wide range of mechanisms that produce the outward or downward of slope-forming materials such as rock, soil, or landfills.

The down-slope movement of material on Earth is called a slope failure. It is the failure of the slope resulting in transport of debris downhill by sliding, rolling, falling, or slumping. This is an example of slope failure called landslides.

Therefore, the given process describe the landslides process.

To learn more about landslides, here:

https://brainly.com/question/13151615

#SPJ1

15) Lidocaine 2 gm/500 mL D5W is ordered to run at 3.5 mg/min. At what rate should the IV pump be set

Answers

Ordered to run at 3.5 mg/min is a dose of lidocaine 2 g/500 mL D5W. The IV pump should be set at a rate of 52.5 mL per hour.

Given 1mg/min = 60mg/hour

Then 3.5 mg/min = 3.5 x 60 mg/hour = 210mg/hour

Lidocaine is 2gm/500mL = 2000mg/500mL

If you only need to calculate the infusion rate, or the amount of medication to infuse per hour, you can do it by taking the entire volume in mL and dividing it by the total number of hours the medication is supposed to be infused over. This will give you the rate in mL per hour.

Then the flow of rate = 210mg/hour / 2000mg/500mL = 210x500/2000 = 52.5mL/hour.

To learn more about flow of rate click here https://brainly.com/question/24560420

#SPJ4

name a solid that when burnt colourless gases are formed.One gas is strongly acidic while the other is slightly basic​

Answers

SULFUR

Sulfur is a solid that when burnt produces two colourless gases: sulfur dioxide (SO2) and sulfur trioxide (SO3). The gas SO2 is strongly acidic, while the gas SO3 is slightly basic. When SO3 is dissolved in water, it forms a solution called sulfuric acid, which is a strong acid. SO2 is also a corrosive gas that can be harmful to humans and the environment. It is often produced as a byproduct of industrial processes, such as the burning of fossil fuels and the production of sulfuric acid.

Hope This Helps You!

I’ve tried to do the problem but it’s confusing

Answers

Answer:

Explanation:

The equation for calculating the amount of heat released is:

q = mcΔT

where:

q = heat released (in joules)

m = mass of the substance (in grams)

c = specific heat capacity (in J/g·°C)

ΔT = change in temperature (in degrees Celsius)

Given:

m = 30 g

ΔT = 96°C - 25°C = 71°C

c = 4.184 J/g·°C (for water)

so

q = (30 g)(4.184 J/g·°C)(71°C) = 8.91*71 = 635.11 J

Therefore, 635.11 J of heat is released when 30g of water cools down from 96 degree celsius to 25 degree celsius

Note that this calculation is valid only if the process is adiabatic or no heat is exchanged with the environment.

How many mole is 1g?

Answers

One gram of a chemical is equivalent to one mole.

A physical characteristic called the molar mass is calculated by dividing the mass of a given substance by the substance's volume. The standard relative atomic mass of an element is multiplied by the molar mass constant, 1 × 10⁻³ kg/mol = 1 g/mol, to determine the molar mass of its atoms. A compound's molar mass is calculated by adding the standard atomic weights of the constituent atoms and multiplying the result by the molar mass constant.

One atom or molecule has the same mass in grams as one mole of a substance does in atomic mass units.

To know more about mole click here

https://brainly.com/question/15356425

#SPJ4

The world’s record for the largest cup of coffee was broken on October 152010, with a 2010 gallon cup of coffee in Las VegasNevada. If a cup of coffee contains 237 mL of coffeehow many cups of coffee would be required to fill this enormous coffee cup?

Answers

The number of coffee cups that would be required to fill the enormous coffee cup would be 32 cups.

Dimensional analysis

The world's largest cup of coffee can hold 2010 gallons of coffee as recorded in Las Vegas.

A normal coffee cup will only hold as much as 237 mL of coffee. Recall that:

1 gallon = 3.78541 L

If 1 gallon = 3.78541 L

  2010 gallons = 2010 x 3.78541

                         = 7608.6741 L

In other words, the coffee cup with the record size will hold a maximum of 7608.6741 L of coffee while a normal coffee cup will only hold 237 mL. The problem now is the number of number coffee cups that will fill the world's record largest coffee.

7608.6741/237 = 32.10

Therefore, the number of normal coffee cups that would be required to fill the enormous coffee cup would be approximately 32 cups.

More on dimensional analysis can be found here: https://brainly.com/question/13078117

#SPJ1

Substances that can be dissolved in water are Group of answer choices rare. soluble. thermal. molecular.

Answers

The correct answer is soluble.

Please mark brainliest I need 1 more!!!!!!!!!!

How many moles of KCI are produced at the same time at 9 moles O2? 2KCIO3=2KCI+3O2

Answers

Answer:

Explanation:

To determine how many moles of KCI are produced at the same time as 9 moles of O2, you can use the balanced chemical equation for the reaction. The balanced equation for the reaction of potassium chlorate (KCIO3) with oxygen gas (O2) is:

2KCIO3 = 2KCI + 3O2

This equation tells us that for every 2 moles of potassium chlorate that react, 2 moles of potassium chloride (KCI) are produced, along with 3 moles of oxygen gas.

Since we know that 9 moles of O2 are produced, we can use the balanced equation to determine how many moles of KCI are produced as well. Since the ratio of O2 to KCI in the equation is 3:2, we can divide 9 moles of O2 by 3 and multiply the result by 2 to find the number of moles of KCI that are produced:

9 moles O2 / 3 = 3 moles KCI

So, for 9 moles of O2, 6 moles of KCI are produced.

Answer: 6 mol KCI

Explanation:

Enrichment Activity 2.


Next up, let us compare the frequencies of different EM waves. Copy and answrr the table on page 16, refer to figure 2, then answer the question that follows.



PA HELP POOOOO

Answers

EM rays, or electromagnetic radiation, is a form of energy that is emitted and absorbed by charged particles.

What are Gamma rays?

Gamma rays are a type of electromagnetic radiation, similar to visible light and x-rays, but with much higher energy. They are produced by the hottest and most energetic objects in the universe, such as neutron stars, pulsars, and black holes. Gamma rays can also be produced artificially, in particle accelerators or nuclear reactions. Gamma rays have the shortest wavelength and highest energy of any type of electromagnetic radiation.

|       Wave       | Frequency (Hz) |

|    Radio Waves   |    < 3 x 10^9 |

|     Microwaves   |     3 x 10^9  |

| Infrared Radiation |    3 x 10^12 |

|   Visible Light  |    4 x 10^14  |

|     Ultraviolet   |    7.5 x 10^14|

|     X-Rays      |    3 x 10^16  |

|   Gamma Rays     |    3 x 10^19  |

Which type of EM wave has the highest frequency?

Gamma Rays have the highest frequency with 3 x 10^19 Hz.

To know more about Gamma rays,

https://brainly.com/question/2399890

#SPJ4

Ethylene burns in oxygen to form carbon dioxide and water vapor:

C2H4(g) + 3 02(g) --> 2 CO2(g) + 2 H2O(g)

How many liters of water can be formed if 1. 25 liters of ethylene at 1. 00 atm and 298K are

consumed in this reaction?

Answers

67.0L of H₂O can be formed if 1. 25 liters of ethylene at 1. 00 atm and 298K are consumed in this reaction.

What do you mean by mole?

A mole is know to be the unit used in chemistry to measure the amount of a substance. It is defined as the amount of matter that contains as many atoms, molecules, or other particles as there are in 12 grams of carbon-12. Moles are a convenient way to measure large numbers of very small particles such as atoms, molecules, ions and electrons.

The molar volume of gas at 1.00 atm and 298 K is 22.41 L/mol.

Given that

2 moles of water are produced from 1 mole of ethylene,

The number of liters of water produced can be calculated with the following formula:

1.25 L C₂H₄ x (2 mol H₂O / 1 mol C₂H₄) x (22.41 L H₂O / 1 mol H₂O)

= 67.0 l H₂O

To learn more about mole

https://brainly.com/question/28003480

#SPJ4

Convert the following numbers into the standard form of scientific notation 0. 010x 10e5

Answers

The standard form of scientific notation for 0. 010x 10e5 is 1.0 × 10^3.

Scientific notation is a form of presenting large numbers or very small numbers in a simpler form.

There are some rules to write scientific notation:

The base should be always 10. The exponent must be a non-zero integer.

Absolute value of the coefficient should be greater than or equal to 1 but it should be less than 10.The mantissa carries the rest of the significant digits of the number.

The power of 10 will be positive, if the given number is multiples of 10 then the decimal point has to move to the left. The power of 10 will be negative If the given number is smaller than 1 and then the decimal point has to move to the right.

If you need to learn more about scientific notation, click here

https://brainly.com/question/18073768?referrer=searchResults

#SPJ4

If methane (CH4) has a tetrahedral molecular geometry, which of the following diagrams most likely represents its Lewis dot structure

Answers

The carbon atom is in the center of the structure and is surrounded by four hydrogen atoms.

What is structure?

Structure is an organized arrangement of elements, such as components, materials, people, or ideas. It is a way of organizing and arranging the components of a system in order to achieve a desired outcome.

The most likely Lewis dot structure for methane (CH4) is the following:
The carbon atom is in the center of the structure and is surrounded by four hydrogen atoms. Each hydrogen atom has one electron in its outer shell, and the carbon atom has four electrons in its outer shell. All of the atoms are arranged in a tetrahedral shape, which matches the molecular geometry of methane.

To learn more about structure
https://brainly.com/question/28353159
#SPJ4

The temperature inside a pressure cooker is 117°C. Calculate the vapor pressure of water inside the pressure cooker. What would be the temperature inside the pressure cooker if the vapor pressure of water was 2.85 atm?

Answers

The vapor pressure of water at its boiling point 100°C is 1 atm. Then the pressure at 117°C is 1.17 atm and the temperature of water at a pressure of 2.85 atm is 285°C.

What is boiling point ?

Boiling point of a substance is the temperature at which it converts from liquid state to vapor state. At this temperature the vapor pressure of water vapor is equal to the atmospheric pressure that is 1 atm .

The temperature-pressure relation is written as:

P1 /T1 = P2/ T2

Now, the pressure inside the cooker at a temperature of 117°C is calculated as:

(1 atm × 117 °C) / 100 °C = 1.17 atm.

Thus, pressure at 117 °C is 1.17 atm. Then, If the pressure is 2.85 atm, then the temperature of water inside the pressure cooker is calculated as:

(2.85 atm × 117 °C) / 1.17 = 285 °C

Therefore, the temperature at 2.85 atm is 285 °C.

Find more on boiling point:

https://brainly.com/question/2153588

#SPJ1

I need help plssss:(

the question is in the photo

Answers

The balanced chemical equation for the combustion of methane is:

CH4(g) + 2 O2(g) -> CO2(g) + 2 H2O(l)

The standard enthalpy of formation (ΔHf) for methane is -74.8 kJ/mol, for carbon dioxide it is -393.5 kJ/mol, and for water it is -285.8 kJ/mol. The standard enthalpy of formation is the change in enthalpy when one mole of a compound is formed from its elements in their standard states.

To calculate the standard enthalpy of reaction (ΔHrxn), we need to use the equation:

ΔHrxn = ΣΔHf (products) - ΣΔHf (reactants)

Plugging in the values for the reactants and products, we get:

ΔHrxn = (2 * -285.8 kJ/mol) + (-393.5 kJ/mol) - (-74.8 kJ/mol)

ΔHrxn = -890.2 kJ/mol

This reaction is exothermic because the value of ΔHrxn is negative. Exothermic reactions release heat, while endothermic reactions absorb heat.

Identify the following chemical reaction: 8 Cu + S8 → 8 CuS

Answers

Combination reaction: 8 Cu + S8 8 CuS in terms of chemistry. There are multiple reactants and multiple products.

Combination reaction: what is it?

Combination reactions occur when two or more substances combine to form a single new substance. Composite processes are also referred to as synthetic reactions. The typical structure of an active components is A+BAB. A combination reaction occurs when two components combine to form a compound.

What qualities make into a combination reaction?

A combination synthesis can involve any number of different reactants. A non-metal and a metal combinations reaction every time leads to an electrolytic process. Combination conformational changes fall into one of three categories. In particular, they consist of two elements combined, two compounds combined, and one element combined with one compound.

To know more about combination reaction visit:

https://brainly.com/question/13134296

#SPJ1

Other Questions
Please help!!!! Use what you have learned to match the parts of sentences Aggregate Demand and Aggregate Supply - End of Chapter Problem Suppose an economy is in its long-run macroeconomic equilibrium when an oil shock shifts the short-run aggregate supply curve to the left resulting in a recessionary gap. a. How do the aggregate price level and aggregate output change in the short run as a result of the oil shock?As a result of the oil shock, the aggregate price level ____ and the aggregate output___ This phenomenon is known as ____ pls help im bad in reading pls pls 1Select the correct answer from each drop-down menu.Prism M and pyramid N have the same base area and the same height Cylinder P and prism Q have the same height and the same base perimeter.Cone Z has the same base area as cylinder Y, but its height is three times the height of cylinder Y.The figureshave the same volume.and T:Change each denominator to the given denominator. Check if the domain changed.If yes, state the changes.12y = xx-yto a denominator of x - yThe domain of the expression Algebra: PLEASES QUICK DUE SOON!!! In Completing the Square problems, what formula do you use to find c? Why were the 50s and 60s such a "tubulent time" in our Nation's history? A, The Vietnam War B. The Civil Rights Movement C, The assassinations of JFK, MLK, and Bobby Kennedy D, All of the above Number these events in the order in which they occurred, from 1st to 5th. A group consisting of 14 aggressive zombies quadruples in size every hour. Which equation matches the number of zombies after 6 hours? QUESTION 1 Study the synoptic weather map below and answer the questions that follow HELENA GOUGH LC O220- LUANDA 160 MOCAMEDES 422 LE d 3. Pr 32 HARARE 175 LEKA 022 LEARECY MARION RECO-SUAREZ 102 7000 1.1 What season is represented on the synoptic map? Give TWO reasons to support your answer. (3) Both the periods of Agricultural Revolution and Globalization have marked decisive turning points in human history. During which era did the most change occur to human development and society? What evidence might you offer to support this claim?May I have some ideas for a thesis statement for this? (AP World History) Why did the Neutrality Act of 1939 favor Britain and France? Can someone please help me with these pleaseeeee While skiing in Jackson, Wyoming, your friend Ben (of mass 63.2 kg) started his de- scent down the bunny run, 11.5 m above the bottom of the run. If he started at rest and converted all of his gravitational potential energy into kinetic energy, what is Ben's kinetic energy at the bottom of the bunny run? Use g = 9.8 m/s Answer in units of J.- answer :7100J part 2 of 2 What is his final velocity? Answer in units of m/s. Please select the word from the list that best fits the definition Brings drizzly rain -50 POINTS- dont explain The line plot shows the numbers of hours volunteers worked at the food pantry. PLSS HELP The cuticle is made of a waxy substance that slows the of water from the plant's surface. What two body systems interact to help you process these types of sensory input? Write the absolute or participial phrase in the sentences below, and identify whether that phrase is an absolute phrase or a participial phrase.1. We stayed inside watching DVDs, the night being rainy and cold.2. Opening the birthday card, he got excited when the check fell out.3. The judges went home, the prizes having been awarded4. Sitting beside his grandfather, Hank fell asleep.5. Having found a parking spot, I breathed a sigh of relief.6. The chocolate cake baked, Mrs Patruni turned to the decorations.7. The refugees can return from the mountains, the war finally ending.8. Having attended the concert held at Stanley Park, the family came home to a barbecue.9. Dressed in his old uniform, Dad walked in the parade.10. The coach singing their praises, the athletes felt proud*