What kind of change forms a chemical reaction? a. a phase change
b. a solubility change
c. a physical change
d. a chemical change

i think it is true since you can test the answer and can use observations to complete it.

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

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