A 2.0 mL bubble of gas is released at the bottom of a lake where the pressure is 6.5 atm and the temperature is 10 degrees celsius. Predict the Celsius temperature of the gas bubble at the surface, where the pressure is 0.95 atm and the volume becomes 14.4 mL.

Volume of NaOH solution needed to neutralize C₆H₈O₇ is 56.825 ml

In titration reaction , at equivalence point

Moles of Acid = Moles of Base

If [tex]M_1[/tex] is mole of acid and [tex]V_1[/tex] is volume of acid

  [tex]M_2[/tex] is moles of base and [tex]V_2[/tex] is volume of base

Then [tex]M_1 V_1 = M_2 V_2[/tex]

Here in this question

[tex]M_1 = 0.200 M\\ M_2 = 0.0333 MV_1 = unknown\\V_2 = 345[/tex]

Therefore,

[tex].200 * V_1 = 0.033 * 345 ml[/tex]

[tex]V_1[/tex] =  [tex]0.033 *345 / .200[/tex]

[tex]V_1 = 56.825 ml[/tex]

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FILTRATION is the process of removing or "straining" a solid (the chemical term is precipitate) from a liquid by the use of filter paper or other porous material.

The correct scientific notation of the following numbers is as follows:

Five guidelines for scientific notation:

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Answer:

atom is smallest praticle of an element

Answer:

atom

Explanation:

According to Steno’s laws of Stratigraphy, the layers of rocks that are older according to the questions are A (Law of Cross-cutting relationships), D (Law of Cross-cutting relationships), D (Law of Original horizontality), J (Law of Superposition).

Geology and the Earth sciences have a discipline known as stratigraphy that focuses on layering (stratification) and rock layers (strata). It is mostly used towards the study of layered volcanic rocks and sedimentary rocks.

Stratigraphy examines the origin, makeup, and spread of these rock layers in addition to their organization and succession. Therefore, evaluating Time and Space is essential for the investigation of archaeological and natural stratification.

The patterns of rock layer deposition are described by Steno's laws of stratigraphy. Laws of superposition, original horizontality, cross-cutting relationships, and lateral continuity are the four laws.

The oldest layer in a succession of sedimentary rock layers is at the bottom, and the layers get younger as they move up the sequence, according to the law of superposition, a key stratigraphic concept.

According to the Law of Original Horizontality, all rock strata were initially deposited horizontally and are therefore susceptible to deformation. This enables us to deduce that for the rocks to be slanted, something must have occurred to them. This comprises quakes, faulting, and mountain-building activities.

According to the Law of Crosscutting Relationships, any faults or other rock bodies that cut through other rocks must be younger in age than the rocks they cut and displace.

According to the Law of Lateral Continuity, all rock strata are laterally continuous but subject to disruption or displacement due to subsequent events. When a stream or river erodes a section of the rock strata, this can occur.

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The Total mass of potassium hydroxide produced is 26.76g

Potassium (K) has a mass of 18.66 g.

Potassium has a molar mass of 39.098 g/mol.

The mass molar mass of potassium (K) is 18.66 g per mole.

0.477 mol for 39.098 g/mol.

As a result, 0.477 mol of potassium (K) are involved in the water reaction.

This means that when 2 mol of K reacts with 2 mol of water, 2 mol of KOH is produced.

Therefore, 0.477 mol of KOH is produced when 0.477mol of K reacts with water.

As a result, 0.477 mol of potassium hydroxide (KOH) was generated in the given process.

KOH has a molar mass of 56.1056 g/mol.

KOH produced weighs (molar mass)×(molar number) = (0.477 mol)×(56.1056 g/mol) = 26.76g

26.76 grams of potassium hydroxide (KOH) were formed in the reaction as a result.

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Answer:

Explanation:

by checkng the chemical formula and oxidationn number

The quantity of 145 ml glasses of wine, consumed over three hours, will produce a bac of 0.10% in this 68 kg person is 2.3 glasses of wine.

Quantity is the measurement of something that is present. It can be liquid, gas, or solid.

In three hours, to produce a BAC of 0,10%  for a 68kg person (5,4L blood) you need to consume:

10 g of ethyl alcohol / 100 ml of blood x 5400 ml of blood + 10.0 g/h = 30.54g of ethyl alcohol

Assuming a 11,6% (v/v) of wine Where density of ethyl alcohol is 0,789 g/mL

30.54g of ethyl alcohol x 1ml ethanol / 0.789 x 100 ml wine/ 1.6 ml ethanol = 333.7 mL wine

333.7 mL wine / 145 ml = 2.3 glass of wine

Thus, the person needs to consume 2.3 glasses of wine.

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Process that work by depositing powder layers solidifying each layer with a laser is selective laser sintering, direct metal laser sintering.

Direct metal laser sintering also called selective laser sintering is a type of metal additive manufacturing or 3D printing. selective laser sintering metal heat the metal powder until it fully melts into liquid but direct metal laser sintering does not melt the metal powder so in that direct metal laser sintering needed less energy.

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Running requires the body to transform potential energy into kinetic energy. A system's internal energy is known as its potential energy. When a system moves horizontally using kinetic energy, potential energy is consumed.

Potential energy is conserved as chemical energy in the human body. The food that a person eats during the day provides the chemical energy. The body requires a specific number of calories, or the energy from food, to carry out specific tasks. The runner will run out of potential energy and weary if they have not consumed enough calories during the day. This is due to the body's poor capacity for storing energy. Although energy cannot be created or destroyed, it may move. The majority of the person's stored energy is released as thermal energy while they run.

The impact of the runner's foot on the ground causes sound waves to be emitted, which releases energy from the runner's body. Every stride a runner takes releases energy from their body, thus it's critical for them to eat adequate chemical energy in the form of calories before their run. The body of the runner need a significant number of calories as a reserve so that they will have more energy to burn as their stored energy is released during the run.

The body is not particularly effective at preserving this energy when it uses the calories it has already consumed. The heat (thermal energy) that the body emits when it transforms its stored (potential) chemical energy into kinetic energy causes around 75% of the chemical energy that the runner has ingested to be wasted as the leg muscles contract to propel the runner forward. The flow chart is attached below.

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The compound inequality to determine the Fahrenheit temperature range at which the antifreeze protects the car would be as follows

−30 < 5/9 (F − 32) < 130 or −22 < F < 266

Let us assume that the temperature in degrees Fahrenheit, up to which the antifreeze protects the car is represented by F.

It is given in the question that the formula to convert Celsius temperature to Fahrenheit temperature is,

C = 5/9(F-32), where C is the temperature in Degrees Celcius at which the antifreeze protects the car.

According to the question, C must be between -30°C and  130°C.

-30 < C' < -130

Put in the values, we get

-30 < 5/9(F-32) < -130

Now C = 5/9(F-32)

So, F - 32  =  9/5C

F =  9/5C+ 32

Thus, -30° in degree  Fahrenheit = 9/5(-30) +32 = -54 + 32 = -22

And, 130° in degree  Fahrenheit = 9/5(130) +32 = 234 + 32 = 266

Therefore,  -30 < 5/9(F-32) < -130  and also be written as  −22 < F < 266.

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Answer: Diffusion

Explanation:

diffusion is when particles move from a region of higher concentration to lower concentration as a result of their random movement. They are in constant motion and the gas particles spread to fill the volume in the room.

bi/o life carcin/o cancer cardi/o heart chem/o chemical cis/o to cut dermat/o skin enter/o small intestine gastr/o stomach

The J-shaped organ that digests food is the stomach. It generates acids and enzymes, which are molecules that cause chemical reactions (digestive juices). Food is broken down by this mixture of enzymes and digestive juices so that it may move to your small intestine. A portion of the gastrointestinal (GI) tract includes your stomach.

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The ocean water contains a mixture of salt and other larger impurities, as well as a mixture of several gases.

A mixture is a material composed of two or more different chemical substances that are not chemically bonded.

The natural waters salt and other larger impurities, and even a variety of gases. This is classified as a heterogeneous mixture due to larger impurities, whereas some is classified as a homogeneous mixture due to a mixture of several gases and salt.

Thus, the mixture can be said to be heterogenous one.

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Answer:

62,000,000 written in scientific notation is 6.2 × 107.

Explanation:

Atomic mass calculated as the sum of protons and neutrons, it is measured in amu. This is because protons and neutrons each have a mass of 1 amu.

The sum of the masses of the protons, neutrons, and electrons in an atom or collection of atoms is known as the atomic mass. Since electrons are far lighter than protons or neutrons, the computation does not take their mass into account. A single atom's atomic mass is only its total mass, and it is usually given in atomic mass units, or amu.

Atomic mass = total number of protons present in the nucleus + total number of neutrons present in the nucleus of an atom

For elements having isotopes relative atomic masses are taken in consideration. The relative atomic mass is an average of the atomic masses of all the different isotopes.

Example- The atomic mass of carbon atom -  with six neutrons and 6 protons the atomic mass is 12 amu.

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Answer:

Reaction of Iron(III) oxide (Fe2O3) with carbon monoxide (CO) to form iron (Fe) and carbon dioxide (CO2), is a redox reaction as both oxidation of carbon monoxide and reduction of iron is taking place. The equation can be written as: Fe2O3+3CO→2Fe+3CO2.

Explanation:

The percent by mass of mercury in mercuric oxide is

93 %.

The formula of mercuric oxide is HgO. When mercury combines with oxygen, then mercuric oxide is formed.

The molecular mass of mercury oxide is 216 g/mol. Its melting point is 500°C.

The balance equation for the reaction of decomposition of mercury oxide is,

[tex]2HgO (s)→ 2Hg (l) + O _{2}(g)[/tex]

Mass of mercury oxide = 28.4 g

Mass of the oxygen = 2 g

The percent by mass of mercury in mercury oxide is,

[tex]Mass ℅= \frac{Mass \: of \: Mercury }{Mass \: of \: Mercury \: oxide} \times 100[/tex]

[tex] = \frac{28.4 - 2}{28.4} \times 100[/tex]

= 93 %

Therefore, the percent by mass of mercury in mercury oxide is 93 %.

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739 ml volume of water would remain

volume of solution = 1Litre = 1000 ml

density of solution = 1.189 g/ml

mass of solution = volume of solution × density of solution

= 1000 × 1.189 = 1189 g

conc of  HCL is 38% by weight.

so, mass of HCL in 1189g of solution = 38% of 1189 = 451.82g

mass of H2O in solution = mass of solution - mass of HCl

= 1189g - 451.82g

= 737.18g

volume of  H2O = mass of  H2O/density of  H2O

= 737.18/0.9982 ml

=739 ml volume of water would remain.

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the question you are looking for is

Concentrated hydrochloric acid is 38% HCl by mass, and it has a density of 1.189 g/ml at 20 celsius. The density of water at 20 celsius is 0.9982 g/ml. If all the HCl were somehow removed from 1.000 liters of this solution at 20 celsius, what volume of water would remain?

The average speed in miles per hour, given the data is 13 miles per hour

Speed is the distance travelled per unit. Mathematically, it can be expressed as:

Speed = distance / time

This is the total distance travelled divided by the total time taken to cover the distance.

Average speed = total distance / total time

The following data were obtained from the question:

The average speed can be obtained as follow:

Average speed = total distance / total time

Average speed = 6.5 / 0.5

Average speed = 13 miles per hour

Thus, the average speed is 13 miles per hour

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Answer:

See explanation

Explanation:

Turning on a flashlight: The chemical energy in the flashlight batteries is converted to electrical energy when the flashlight is turned on. The electrical energy is then converted to light (electromagnetic / radiant energy) and some thermal energy (little warmth from light in flashlight) by the light bulb. Chemical to Electrical to Light and Thermal

A Toaster: When electrical energy passes through the heating element in a toaster, it converts this electrical energy to thermal energy which helps to prepare toast. Electrical to thermal

Playing a violin: When the violin and the strings vibrate due to mechanical energy, it produces sound waves and sound energy. Mechanical to Sound

Nuclear power plant: Nuclear power plants use heat from fission to make steam that turns the turbine, creating mechanical energy. Mechanical energy turns the electric generator. Thermal to Mechanical

The skill of Dimensional Analysis in the science deals with the conversion of units and numbers.

The physical quantities are only seven in basic. All the other quantities that we see are just derived quantities in one or the other.

While checking the correctness of a formula or while analyzing the reliability of an equation, we use dimensional analysis and convert the units into the dimension form.

Every fundamental quantity is given a Special notation like M for kg and L for meter.

Converting a bigger quantity into a smaller one is also a part of the dimensional analysis. As we know, we can measure the distance between our houses in meter but thing are different when it comes to astronomical distances.

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Inorganic chemistry is a type of chemistry studies non-carbon based materials

Organic chemistry is defined as the study of carbon-containing compounds, inorganic chemistry is the study of the remaining means not carbon-containing subset of compounds and inorganic chemistry focuses on structures that do not contain carbon and most commonly these structures include oxygen, silicon, aluminum, iron, calcium, sodium and magnesium and inorganic chemistry also studies synthesis, reactions, structures and properties of compounds

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Answer:

in organic chemistry is the type of non carbon based materials.

Explanation: it is a study of behavior and properties of in organic compounds which includes metals, minerals , compounds.

Answer: depends on the charge.

Explanation:

Let's say you have 9 protons and a charge of -2. Your amount of electrons would be 2 larger than that of your protons. The more electrons, the more negatively charged your atom is.

If there is no charge given or electrons listed, your number of protons (atomic number) will be the same as your number of electrons. In this case, there are 9 protons and 9 electrons.

This might not help, but if you're given no information about charge or electrons, your charge is 0 and you're automatically forced to assume that your number of protons is equal to that of your amount of electrons.

Animals contribute to the water cycle mainly through breathing perspiration and the excretion of waste. Animals release water vapor when they exhale which contributes to the water vapor in the atmosphere. Sweat is also released through the pores which then evaporates to help cool their body down. Water is also excreted through urination as well as in their solid waste.

The position of animals within the water cycle is they launch water vapor once they exhale. explanation The water cycle suggests the non-stop motion of water within the earth and ecosystem. Liquid water evaporates into water vapor, condenses to shape clouds, and precipitates lower back to earth as rain and snow. Excretion is an essential part of the water cycle because it contributes to the quantity of water vapor in the air.

Humans and most animals excrete water by sweating, urinating, or defecating. The water molecules in those wastes can also evaporate and be a part of the water vapor suspended within the environment. cellular breathing performs a position inside the water cycle because it makes molecules of water from glucose and oxygen. The hydrogen inside the water molecule comes to form the glucose molecule, C6H12O6, even as the oxygen inside the water molecule comes from the oxygen fuel atom.

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Sublimation is the conversion between the solid and the gaseous phases of matter, with no intermediate liquid stage.

Sublimation is that the method by that a substance changes from its solid to vaporous state while not transitioning to its liquid state. At a temperature and pressure below the substance's triple purpose, this method, Associate in Nursing heat-absorbing natural process, takes place.

Solids will directly elegant into the air if they need enough pressure level at a given temperature. Sublimation happens once a solid reaches its triple point below extreme pressure. The triple point is that the temperature and pressure at that a substance will at the same time exist all told 3 of its famed states of matter. A substance's triple point is one in every of its distinctive points.

The opposite of this method, during which a gas is remodeled straight into a solid state, is Desublimation or deposition.

The best illustration of sublimation is solid, that is Carbon dioxide that has been frozen. solid directly transforms from its solid state to a vaporous state, that is visible as fog, once it's exposed to air. The vaporous state of frozen dioxide is additional stable than the solid state.

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SO₂ represent molecular and empirical formula, B₄H₁₀ represent only molecular formula, CO represent molecular formula and empirical formula, C₄H₄O₂ represent only molecular formula.

The chemical formula that gives total number of atoms of each element in one molecule of a compound is called Molecular Formula.

Empirical formula is the formula of compound in which it exist in simplest whole number ratio of atoms present in a compound.

Thus from the above conclusion we can say that SO₂ represent molecular and empirical formula, B₄H₁₀ represent only molecular formula, CO represent molecular formula and empirical formula, C₄H₄O₂ represent only molecular formula.

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Disclaimer: The given question is incomplete on the portal. Here is the complete question.

Question: Consider the following four formulas: SO₂, B₄H₁₀, CO, C₄H₄O₂. Which of these formulas could be only an empirical formula, only a molecular formula, either a molecular or an empirical formula?

The concentration of hydroxide ions is

4.89 x 10^-10

Given:

[H3O+] = 2 x 10^-5 m

To Find:

pOH of solution

Solution:

pH = -log[H3O+]

pH = -log[2 x 10^-5]

pH = 4.69

pH + pOH = 14

pOH = 14 - 4.69 = 9.31

Now , we can calculate the concentration of hydroxide ions of the solution very easily as shown below :

[OH-] = 10^-pOH

[OH-] = 10^-9.31

[OH-] = 4.89 x 10^-10

Thus , the concentration of hydroxide ions is

Thus , the concentration of hydroxide ions is 4.89 x 10^-10

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Answer:

One mole of O₂ weighs 32 g

Explanation: