How does the rate law show how concentration changes affect the rate of reaction?
A. The rate is expressed as the sum of the concentrations of
reactants raised to some power.
B. The rate is expressed as a ratio of the concentrations of reactants
raised to some power.
C. The rate is expressed as the difference between the
concentrations of reactants.
O
D. The rate is expressed in terms of concentrations of the reactants
raised to some power.

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3

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

24