Rates of Reactions

Front

What are reactants in a chemical reaction?

Back

Reactants are the substances that undergo a chemical change in a reaction, located on the left side of the reaction equation.

Front

What is the role of a catalyst in a chemical reaction?

Back

A catalyst increases the rate of a chemical reaction by lowering the activation energy required for the reaction to occur.

Front

What is activation energy?

Back

Activation energy is the minimum amount of energy needed for colliding particles to react.

Front

How does particle size affect the rate of reaction?

Back

Smaller particle size allows for a larger surface area to be exposed for the reaction, increasing the rate.

Front

What effect does increasing temperature have on particles?

Back

Increasing the temperature gives particles more energy, which can increase the rate of reaction.

Front

What are products in a chemical reaction?

Back

Products are the substances that are formed as a result of a chemical reaction, located on the right side of the reaction equation.

Front

What is the collision theory?

Back

Collision theory states that for a reaction to occur, particles must collide with sufficient energy and proper orientation.

Front

How does concentration affect the rate of reaction?

Back

Increasing the concentration of reactants generally increases the rate of reaction, as there are more particles available to collide.

Front

What is the effect of surface area on reaction rates?

Back

A larger surface area allows more collisions to occur, which can increase the rate of reaction.

Front

What is a chemical reaction?

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.