1-◇Formed with NaOH, HCl, NH3 and H2CO3 acids and bases; I. NaCl, II. Na2CO3, III. NH4Cl Which or which salts hydrolysis?

Question

a) I only b) II only c) III only d) I and II e) II and III

2-◇H2 (g) + CO2 (g) <----> H2O (g) + CO (g) K1 2CO (g) + O2 (g) <----> 2CO2 (g) K2 Since there is 2H2O (g) <----- What is the equilibrium constant of the reaction of> 2H2 (g) + O2 (g) in terms of K1 and K2?
a) K1^2xK2
b) 2K1 + K2
c) -2K1-K2
d) 1 / K1^2xK2
e) 1 / 2K1xK2

3-◇In a chemical reaction; (A) changes the mechanism, does not affect ΔH, (B) Mechanism and does not change the rate constant, it affects the reaction rate, (C) Changes the rate constant and speed. Which of the following is true for A, B and C? 

 a)Catalyst Concentration Temperature  b)Temperature Concentration Catalyst
c) Catalyst Temperature Concentration  d)Concentration Catalyst Temperature  e)Temperature Catalyst Concentration

Answer 1

1-◇Formed with NaOH, HCl, NH3 and H2CO3 acids and bases; I. NaCl, II. Na2CO3, III. NH4Cl Which or which salts hydrolysis?
a) I only b) II only c) III only d) I and II e) II and III

The answer is e but DO YOU KNOW WHY? It doesn't help you for me to give you the answer if you can't do a hydrolysis problem on your own.

2-◇H2 (g) + CO2 (g) <----> H2O (g) + CO (g) K1 2CO (g) + O2 (g) <----> 2CO2 (g) K2 Since there is 2H2O (g) <----- What is the equilibrium constant of the reaction of> 2H2 (g) + O2 (g) in terms of K1 and K2?
a) K1^2xK2
b) 2K1 + K2
c) -2K1-K2
d) 1 / K1^2xK2
e) 1 / 2K1xK2
The answer is a but do you know why? Can you do one of these on your own?

I don't understand question 3.

Answer 2

In 3 question
Which of these options do they define as A, B and C definitions?

a)Catalyst, Concentration, Temperature
b)Temperature, Concentration, Catalyst
c) Catalyst ,Temperature, Concentration
d)Concentration, Catalyst ,Temperature
e)Temperature, Catalyst, Concentration

Answer 3

No help. I still don't get 3.

Answer 4

Thank you so much 🤗