Which term describes this reactions?

addition
condensation
elimination
substitution

Answer:

Two, I'd say, unless there's some trick to what you're asking! :)

Explanation:

Answer:

eleven

Explanation:

combine numbers together

1   +   1

1  + 1

1 + 1

1+1

11

--------------------------------------------------------

just kidding LOL

answer is 2

As the air gets warmer it rises because,  particles spread out making it less dense. The diffusing capability of gas molecules make it possible.

Intermolecular force are the force that keep the particles of a substance binded together. Gaseous molecule easily diffuse in air , since the intermolecular attraction is very less in them.

In solid state molecules are densely packed and difficult to move apart. In liquid state , particles have some space to move and in gases molecules are far apart due to less intermolecular force.

As the gas molecules in air absorbs heat energy, they overcome all the intermolecular forces and will spread out in the air. Thus, they rises above over a temperature gradient.

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Answer:

b

the balanced is 2fe+3cl2=2fecl3

The coefficient that are required to balance the chemical reaction should be [tex]2fe+3cl2=2fecl3[/tex]

It is the process where it contain one or more substance known as the reactant. And, are converted into one or more different substance called as the products. It could be in the form of chemical elements or compounds.

Hence, we can conclude that The coefficient that are required to balance the chemical reaction should be [tex]2fe+3cl2=2fecl3[/tex]

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Answer:

salt and hydrogen gas

Explanation:

acid + metal = salt + hydrogen

Answer:

hope this helps

Explanation:

hydrogen gas

An acid will react with a metal to form a salt and hydrogen gas. The general word equation for the reaction between an acid and a metal is as follows: acid + metal → salt + hydrogen.

Answer:

Kg/ ml

Explanation:

Hope I help you

thank you

Answer:

400.58

Explanation:

Standard pressure is 1atm/760 mm Hg

760-359.42= 400.58

Answer:

Explanation:

H2O: 18.015 g/mol

0.586 mol H2O x 18.015 g/mol H2O x 1 mol H20 = 10.557 g H20

C6H12O6: 180.156 g/mol

0.586 mol C6H12O6 x 180.156 g/mol C6H12O6 x 1 mol = 105.571 g C6H12O6

CH4: 16.043 g/mol

0.586 mol CH4 x 16.043 g/mol x 1 mol CH4 = 9.401 g CH4

Answer:

its D. potassium and chromium

Answer:

option d

Explanation:

potassium and chromium

Answer:

Volume = 190.8

k = -1/(slope of plot) is the correct answer to identify the rate constant k for the reaction based on the information in the plot of ln[H2O2] versus time (t).

Therefore, the rate constant can be determined by finding the slope of the plot and then using the formula k = -1/(slope of plot)

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Anaerobic respiration results in the production of 2 ATP molecules.

Anaerobic respiration is the use of electron acceptors other than molecular oxygen in respiration. Despite the fact that oxygen is not the ultimate electron acceptor, the process employs a respiratory electron transport chain. When there is insufficient oxygen for some species to respire, they still require energy to survive. Due to a lack of oxygen, they respire in the absence of oxygen to create the energy they require, which is known as anaerobic respiration. While most aerobic respiration (with oxygen) occurs in the cell's mitochondria, anaerobic respiration (without oxygen) occurs in the cytoplasm.

Here,

Two ATP molecules are created during anaerobic respiration.

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The correct representation about resonance structures is that The structure of the species cannot be correctly predicted by a single resonance structure and the only way resonance structures vary is in the way the electrons are arranged.

In valence bond theory, resonance is defined as a hybrid structure formed by combining a variety of contributing structure into a resonance hybrid. Because orbitals overlap, resonance happens. Pi bonds, created when two 2p orbitals overlap, are the building blocks of double bonds. These pi orbitals' electrons are delocalized since they will be dispersed across more than two atoms.

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Option B. It provides a single reference for all information about hazardous chemicals.

MSDS does not provide a single reference for all information about hazardous chemicals, but it does provide information on physical and chemical properties, potential hazards, and safe work practices.

The Material Safety Data Sheet (MSDS) is a document prepared by the manufacturer or supplier of a hazardous chemical which provides information about the physical and chemical properties of the hazardous chemical, potential hazards associated with it, and how to work safely with it. The MSDS is an important element of an effective chemical hazard communication system as it provides information on how to identify and protect against potential health hazards, proper storage and handling procedures, and proper disposal methods.

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The quantity of atoms or molecules per gram of atomic weight is known as aspartame number, which is 6.022 1023/mole.

A dipeptide made up of the amino acids phenylalanine and aspartic acid is called aspartame and is its methylester. People with phenylketonuria, who must carefully limit their intake of phenylalanine, must be made aware of the ingredient's existence in the medicinal product and the quantity present in each dose unit. In turn, 10 g of aspartame contains 0.034 moles of molecules. How many nitrogen atoms make up 1.2 grams of aspartame? Due to aspartame's 294.347 g/mol molar mass, 1.2 g is equal to 1.2 g / 294 g/mol, or 0.0041 moles. Aspartame is digested in the body, unlike certain other potent sweeteners, and as a result.

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The question is: Calculate the molar fractions of the components of a solution made up of: 250 g of water, 50 g of acetic acid and 25 g of sodium chloride.

Answer: The mole fraction of water, acetic acid and sodium chloride is 0.916, 0.054, and 0.028.

Explanation:

As number of moles is the mass of substance divided by its molar mass.

Therefore, moles of given species are calculated as follows.

The number of moles of water (molar mass = 18 g/mol):

[tex]Moles = \frac{mass}{molar mass}\\= \frac{250 g}{18 g/mol}\\= 13.88 mol[/tex]

The number of moles of acetic acid (molar mass = 60.052 g/mol):

[tex]Moles = \frac{mass}{molar mass}\\= \frac{50 g}{60.052 g/mol}\\= 0.832 mol[/tex]

The number of moles of sodium chloride (molar mass = 58.44 g/mol):

[tex]Moles = \frac{mass}{molar mass}\\= \frac{25 g}{58.44 g/mol}\\= 0.427 mol[/tex]

Therefore, mole fraction of each component is calculated as follows.

Mole fraction of water:

[tex]Mole fraction = \frac{moles of water}{Total moles}\\= \frac{13.88}{13.88 + 0.832 + 0.427}\\= \frac{13.88}{15.139}\\= 0.916[/tex]

Mole fraction of acetic acid:

[tex]Mole fraction = \frac{moles of water}{Total moles}\\= \frac{0.832}{13.88 + 0.832 + 0.427}\\= \frac{0.832}{15.139}\\= 0.054[/tex]

Mole fraction of NaCl:

[tex]Mole fraction = \frac{moles of water}{Total moles}\\= \frac{0.427}{13.88 + 0.832 + 0.427}\\= \frac{0.427}{15.139}\\= 0.028[/tex]

Thus, we can conclude that mole fraction of water, acetic acid and sodium chloride is 0.916, 0.054, and 0.028.

Answer:

52,000 kJ

Explanation:

The combustion reaction is the following:

2 C₂H₆(g) + 7 O₂(g) → 4CO₂(g) + 6H₂O(l)  ΔHm= –3120 kJ

From the chemical reaction and the value of ΔH we can see that 2 moles of ethane gas (C₂H₆(g)) release 3120 kJ of heat energy. So, we have the conversion factor: 3120 kJ/2 moles C₂H₆.

To calculate how many kJ are released from the combustion of 1 kg of ethane, we have to first convert the mass to moles by using the molecular weight (MW) of ethane (C₂H₆):

MW(C₂H₆) = (12 g/mol x 2 C) + (1 g/mol x 6 H) = 30 g/mol

mass = 1 kg x 1000 g/1 kg = 1000 g

moles of C₂H₆= mass/MW = 1000 g/(30 g/mol) = 33.3 mol C₂H₆

Finally, we multiply the conversion factor by the number of moles of C₂H₆ in 1 kg:

heat energy released = 33.3 mol C₂H₆ x 3120 kJ/2 moles C₂H₆ = 52,000 kJ

Therefore, 51,000 kJ are released when 1 kg of ethane is burned.

Answer:

your answer is B, your graph is constant from there, therefore the pattern is uniform (orderely).

The balanced chemical equation that represents addition of CL2 to CH3CH=CH2 is : CH3CH=CH2 = CL2 > CH3CHClCH2Cl.

Balanced chemical equations have the same number and type of each atom on both the sides of an equation. Coefficients in a balanced equation has to be the simplest whole number ratio and mass is always conserved in chemical reactions.

Balanced equation is an equation for a chemical reaction where the number of atoms for each element in the reaction and total charge is same for both the reactants and products. In other words, we can say that mass and the charge are balanced on both sides of a reaction.

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Answer:

The answer is 21.5 L

Explanation:

Measuring tools like Clear ruler, yardstick, measuring tape etc. They are very useful for the perfect fit and shape of any garment and even home furnishing.  

Sewing is the craft of fastening or attaching objects using stitches which is made up of a sewing needle and thread.

Measuring tools are the instruments used by practitioners and researches to aid in the assessment or evaluation of the subjects, clients or patients etc. These instruments are used to measure or collect the data on a variety of variables ranging from psychosocial wellbeing or physical functioning.

Measuring tools in sewing are as follows: Measuring tape, clear ruler, quilting ruler, yardstick, French curve etc.

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O copper of the following elements can be prepared by electrolysis of their aqueous salts

H+ ions are drawn to the cathode during the electrolysis of water, where they pick up electrons to create hydrogen gas. The oxygen gas is formed when OH-ions are drawn to the anode and lose their electrons.

Sodium chloride solution electrolysis is a significant industrial process. Chlorine gas is created at the positive electrode; hydrogen gas is created at the negative electrode; and an alkali is left in the solution as three valuable chemicals.

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Answer:

V2 = 5.8 L

Explanation:

T1 = 50°C = 323 K

V1 = 5L

T2 = 100°C = 373 K

V2 =?

According to Charles's law,

V1/T1 = V2/T2

---> V2 = (T2/T1)V1 = (373K/323K)(5 L)

= 5.8 L

The pressure exerted by a 200 lb man wearing size 10 shoes, if the area of each shoe in contact with the floor is 20 square inches is about 5.77 Pa.

Pressure is the force exerted by unit area. Hence, as the force applied increases, pressure increases.

To calculate the pressure exerted by the man, we need to use the formula:

Pressure = Force / Area

where the force is the weight of the man, and the area is the total area of both shoes in contact with the floor.

First, we need to convert the weight of the man from pounds (lb) to Newtons (N), since the SI unit of force is the Newton. We can do this using the conversion factor:

1 lb = 4.44822 N

So, the weight of the man in Newtons is:

200 lb x (4.44822 N/lb) = 896.44 N

Next, we need to calculate the total area of both shoes in contact with the floor. Since the man is wearing size 10 shoes, we can estimate the area of each shoe to be:

Area per shoe = πr^2 = π(5 in)^2 = 78.54 in^2

So, the total area of both shoes in contact with the floor is:

Total area = 2 x 78.54 in² = 157.08 in²

Now we can calculate the pressure exerted by the man:

Pressure = Force / Area = 896.44 N / 157.08 in²

We need to convert the units of area from square inches (in²) to square meters (m²), since the SI unit of pressure is the Pascal (Pa) and 1 Pa = 1 N/m²:

Pressure = (896.44 N / 157.08 in^2) x (1 m^2 / 1550 in^2) = 5.77 Pa

Therefore, the pressure exerted by the man is approximately 5.77 Pa.

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A) Sodium is the element that will produce a new compound when added to a beaker containing an aqueous solution of copper (II) sulfate ().

When sodium is added to an aqueous solution of copper (II) sulfate, a new compound is formed.

This reaction is known as a displacement reaction and occurs when the sodium ions take the place of the copper ions in the solution.

As the sodium ions bond with the sulfate ions, they form sodium sulfate and free copper ions, which can then be extracted from the solution. This reaction is a great example of how chemical reactions can produce new compounds and materials.

This chemical reaction illustrates how certain substances can interact to create new substances with different properties.

Although a part of your question is missing, you might be referring to this question:

Which element will produce a new compound when added to a beaker containing an aqueous solution of copper (II) sulfate ()?

a) Sodium

b) Berrylium

c) Manganese

d) none of the above

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It is false that the broad bands or regions located around the nucleus where the electrons are found are called energy rings.

The nucleus is the centre of an atom. Protons and neutrons are particles that make up the nucleus. Shells of electrons rotate around the nucleus. The atom is made up of a small nucleus surrounded by electrons that move. The nucleus includes protons, with a positive charge equivalent to the negative charge of an electron. Neutrons, which have almost the same mass but still no charge as protons, may also be found in the nucleus.

The nuclear powerful force extends long enough from each baryon to bind protons and neutrons together while repelling the repelling electrical force between positively charged protons. The nuclear force acting has a relatively narrow range and practically vanishes just beyond the nucleus's border.

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The net ionic equation for the reaction between aqueous sodium fluoride and hydrochloric acid is B. Na+ (aq) + F- (aq) + H+ (aq) + Cl- (aq) → Na+ (aq) + Cl- (aq) + HF (aq)

This is the net ionic equation for the reaction between aqueous sodium fluoride and hydrochloric acid. The balanced equation for this reaction is NaF (aq) + HCl (aq) → NaCl (aq) +HF (aq).

The net ionic equation is derived by canceling out the spectator ions, which are ions that don't participate in the chemical reaction. In this case, Na+ and Cl- are spectator ions, which means that they don't participate in the reaction and are present in the same form on both sides of the equation. Therefore, they are cancelled out, leaving the net ionic equation Na+ (aq) + F- (aq) + H+ (aq) + Cl- (aq) → Na+ (aq) + Cl- (aq) + HF (aq).

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4.6 is the pH of the juice if hydrogen ion concentration of a fruit juice is 2.5 x 10-5 M.

pH is the measure of acidity or alkalinity of a solution.

It is measured by taking negative logarithm of hydrogen ion concentration.

pH = -log [[tex]H^+[/tex]]

Given [tex][H^+][/tex] =  2.5 x [tex]10^-^5[/tex] M.

pH = -log [ 2.5 x [tex]10^-^5[/tex] M]

pH = 4.6

Hence, 4.6 the pH of the juice.

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