Answer:
D. The catalyst could absorb one of the particles, making a successful (reaction-producing) collision with the other particles more likely.
Explanation:
The way that a solid (heterogenous) catalysts functions is by the reactant getting adsorbed to the surface of the catalyst at active sites. An interaction between the surface of the catalyst and the reactant makes the reactants more reactive, causing the reaction to happen.
The answer is 5.5x10 to the power of 27.
6.02x10 to the power of 23 is how many particles are in one mole.
Therefore, if there are 922 moles then by cross-multiplying I multiplied 6.02x10 to the power of 23 with 922 and that's how I got the answer of 5.5x10 to the power of 27.