Introduction to Chemical Reactions Flashcard

Front

What can be adjusted to balance a chemical equation?

Back

Coefficients are adjusted to balance a chemical equation.

Front

If two chemicals are mixed and they begin to heat up, what type of chemical reaction is this?

Back

This is an example of an exothermic reaction.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a reaction that releases energy in the form of heat.

Front

What are indicators that a chemical reaction has taken place?

Back

Indicators include bubbles, change in smell and/or color, formation of a solid precipitate, and change in temperature.

Front

What are the substances that form in a chemical reaction called?

Back

The substances that form in a chemical reaction are called products.

Front

What are reactants in a chemical reaction?

Back

Reactants are the starting substances that undergo a chemical change.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

Front

What is an endothermic reaction?

Back

An endothermic reaction is a reaction that absorbs energy in the form of heat.

Front

What is a chemical equation?

Back

A chemical equation is a symbolic representation of a chemical reaction.

Front

What does it mean to balance a chemical equation?

Back

Balancing a chemical equation means ensuring that the number of atoms for each element is the same on both sides of the equation.