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jek_recluse [69]
3 years ago
6

Which of the following is a inert gas?oxygenchlorinenitrogenaragon​

Chemistry
1 answer:
Sophie [7]3 years ago
5 0

Answer:

argon is an inert gas

Explanation:

an inert gas is when a chemical helium, xenon, neon, krypton, radon are also inert gases

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How many milliliters of <img src="https://tex.z-dn.net/?f=H_%7B2%7D" id="TexFormula1" title="H_{2}" alt="H_{2}" align="absmiddle
adoni [48]

Answer:

The answer is

21.5 L

.

So, start with the balanced chemical equation for the decomposition of hydrochloric acid

2

HCl

→

H

2

+

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2

Notice that you have a

2:1

mole ratio between

HCl

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, which means that every 2 moles of the former will produce 1 mole of the latter. The number of moles of

HCl

you have is.

Explanation:

I don't know if that is but I try my best just correct me if I'm wrong thank you!!

6 0
1 year ago
Phase change involves changing states of matter (solid-liquid-gas). How do these three states of matter differ from each other?
Morgarella [4.7K]

solid : the molecules are tightly packed

liquid : the molecules have some space in them

gas : molecules can freely move around

4 0
2 years ago
Which is/are part of the macroscopic domain of solutions and which is/are part of the microscopic domain: boiling point elevatio
Juliette [100K]

Answer:

Macroscopic domain: Boiling point elevation, Henry's law, molarity, osmosis.

Microscopic domain: Hydrogen bond, ion-dipole attraction, nonelectrolyte, solvated ion.

Explanation:

A solution is composed of a solute (in high quantity) and one or more solute, which are dissolved in it. The properties of the solution can be characterized and measured in the macroscopic domain, or the microscopic domain when it's observed in the interactions with the molecules.

Boiling point elevation: It happens because the nonvolatile solvents interact with the solute, and so it will be difficult to boil it. The boiling point is a property of all the substance, and so, it can be noticed in the macroscopic domain.

Henry's law: States that the solubilization of a gas in a liquid depends on the partial pressure of the gas and by a proportional constant. Thus, the solubility of a gas is how much moles are dissolved in the volume of the solution, and so it's part of the macroscopic domain.

Hydrogen bond: It's an intermolecular interaction that happens in polar molecules that have bonds between hydrogen and a high electronegative element (N, O, or F). So, it's part of the microscopic domain.

Ion-dipole attraction: It's also an interaction that happens between an ion and a polar compound, so it's part of the microscopic domain.

Molarity: It represents how much moles of the solute is dissolved in the solution, so it's part of the macroscopic domain.

Nonelectrolyte: An electrolyte compound is the one which dissociates or ionizes, in the solvent, and because of that the solution can conduct electricity. A nonelectrolyte doesn't have this property. Because it depends on how the ions and molecules behave in solution, it's part of the microscopic domain.

Osmosis: Is the property of the solvent to go through a membrane from a side with fewer solutes (less concentrated) to another with more solute (high concentrated). So, it depends on the total amount of the solute, and so it's part of the macroscopic domain.

Solvated ion: A solvated ion is an ion that is surrounded by another ion, or by molecules, such water. So, it's part of the microscopic domain.

7 0
3 years ago
1. You may "feel" cold when you touch certain kinds of matter because​
Vinil7 [7]
You may feel cold when you touch certain kinds of matter because some matter gives off cold air. I’m NOT SURE
8 0
3 years ago
Which of the following sample will have the greatest average speed at 355 K?. A. CH4. B. Ne. C. C2H4. D. Cl2
Amanda [17]

Answer:

The correct option is methane :CH_4.

Explanation:

Average speed of the gas molecules id given by expression:

v_{avg}=\sqrt{\frac{8kT}{\pi m}}

k = Boltzmann cosnatnt

T = Temperature of the gas molecules = 355 K

m = molecular mass of the molecule

v_{avg}\propto \sqrt{\frac{1}{m}}

Molar mass of methane = 18 g/mol

Molar mass of neon = 20.18 g/mol

Molar mass of ethene = 28 g/mol

Molar mass of chlorine gas = 70 g/mol

Lower the value of molar mass of gas molecule higher will be the average speed.So, from the given options methane gas greatest average seed because it has lowest molecular mass

6 0
4 years ago
Read 2 more answers
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