Chemistry, 30.01.2020 05:03 leigha54

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1. when a reaction is at equilibrium and more reactant is added, which of the following changes is the immediate result?

a. the reverse reaction rate remains the same.

b. the forward reaction rate increases.

c. the reverse reaction rate decreases.

d. the forward reaction rate remains the same.

2. nh4cl (s) + heat ⇌ nh3(g) + hcl (g)
what kind of change will shift the reaction above to the right to form more products?

a. a decrease in total pressure

b. an increase in the concentration of hcl

c. an increase in the pressure of nh3

d. a decrease in temperature

3. at equilibrium,

a. all reactions have ceased.

b. only the reverse reaction continues.

c. only the forward reaction continues.

d. both the forward and reverse reactions continue.

4.
which of these describes the rate of this chemical reaction?
h2 + cl2 → 2 hcl

a. an increase in the concentration of hcl and h2 with time

b. an increase in the concentration of hcl with time

c. an increase in h2 and cl2 with time

d. a decrease in hcl and cl2 with time

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1. when a reaction is at equilibrium and more reactant is added, which...