Question

1. what principle is central to understanding reaction rates and is based on the idea that particles must collide effectively for a reaction to occur? a. collision theory b. entropy c. stoichiometry principle d. conservation of mass

Explanation:

Collision Theory states that for a chemical reaction to occur, particles must collide with sufficient energy and proper orientation. Entropy is related to the degree of disorder. Stoichiometry deals with the quantitative relationships in chemical reactions. Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction. The description in the question matches Collision Theory.

Answer:

A. Collision Theory