Which is the correct expression for Keq when the chemical reaction is as follows:N2 + 3H2 2NH3.

Answers

Answer 1

Answer:

Answer : The expression for equilibrium constant will be,

$K_(eq)=\fac{[NH_3]^2}{[N_2][H_2]^3}$

Explanation :

Equilibrium constant : It is defined as the number of ratio of the concentration between the products and the reactants at equilibrium.

The equilibrium reaction is,

$aX+bY\rightleftharpoons cW+dZ$

The general expression for equilibrium constant will be,

$K_(eq)=([X]^a[Y]^b)/([W]^c[Z]^d)$

The given balanced chemical reaction will be,

$N_2+3H_2\rightleftharpoons 2NH_3$

The expression for equilibrium constant will be,

$K_(eq)=([NH_3]^2)/([N_2][H_2]^3)$

Answer 2

Answer: The expression of the Keq is [NH3]2/([N2][H2]3). The common formula of reaction: ax+by=cz is Keq - [z]c/([x]a*[y]b). Remember to use a balanced chemical reaction.

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Properties of a solution that depend only on the ratio of the number of particles of solute and solvent in the solution are known as:intensive properties

extensive properties

colligative properties

chemical properties

Answers

Properties of a solution that depend only on the ratio of the number of particles of solute and solvent in the solution are known as colligative properties

Why does an ion have an electrical charge?

Answers

An ion has an electrical charge because it either has more electrons than protons or it has more protons than electrons. Electrons, which are found in the shells of an atom, have a negative charge, while protons, found in the atom's nucleus, have a positive charge.

Which of the following elements is NOT a transition metal?a. Copper
c. Sodium
b. Chromium
d. Iron

Answers

This answer is Sodium

D. Iron .. im not sure

Which of the following sequences lists the relative sizes of particles in a water mixture from smallest to largest? a. Solutions, suspensions, colloids
b. Solutions, colloids, suspensions
c. Colloids, solutions, suspensions
d. Colloids, suspensions, solutions
e. Suspensions, colloids, solutions

Answers

mostly A., im guessing

How many grams of carbon dioxide (CO2) are found in a 11.9 L container under 1.5 atm and 20.0oC.

Answers

pV=nRT

p = 1,5atm = 1,5*101325 = 151987,5 Pa
V = 11,9l = 0,0119m3
n = ?
R = 8,314 J/mol*K
T = 20°C = 20+273 = 293K

pV=nRT
151987,5*0,0119 = n*8,314*293
1808,6513=n*2436,002 ||:2436,002
0,7425 = n >>> moles of CO2

1 mole of CO2 = 44g

1 mole of CO2--------------44g
0,7425 moles of CO2----------x
x = 32,67g of CO2

Which of the following chemicals, found in tobacco smoke, is also found in nail polish remover?a. ammonia
b. acetone
c. formaldehyde
d. arsenic

Answers

The answer is the option B. Acetone. Acetone is a very important solvent. Due to its solvent ability, acetone is the main constituent of nail polish removers to dissolve finger nail paint.. Acetone is also present in cigarettes as solvent for extraction process. Acetone then is found the cigarette smoke.Hope this helps. Let me know if you need additional help!

Answer:

b is the correct answer for e2020

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