5.0 Chemical Reactions

Front

What is a chemical reaction?

Back

A process in which substances (reactants) undergo a transformation to form new substances (products).

Front

What is the role of temperature in chemical reactions?

Back

Increasing temperature causes particles to move faster, leading to more frequent and energetic collisions, which can increase the rate of reaction.

Front

What is a catalyst?

Back

A substance that increases the rate of a chemical reaction without being consumed in the process.

Front

Define exothermic reaction.

Back

A chemical reaction that releases energy, usually in the form of heat.

Front

Define endothermic reaction.

Back

A chemical reaction that absorbs energy from its surroundings.

Front

What is a balanced chemical equation?

Back

An equation where the number of atoms for each element is the same on both sides, indicating the conservation of mass.

Front

What are reactants in a chemical equation?

Back

The starting substances that undergo a chemical change.

Front

What are products in a chemical equation?

Back

The substances formed as a result of a chemical reaction.

Front

What is the significance of the coefficients in a chemical equation?

Back

Coefficients indicate the relative amounts of reactants and products involved in the reaction.

Front

What is a single replacement reaction?

Back

A reaction where one element replaces another in a compound.