PS Practice Flashcard 13: CH 19: Chemical equations

Front

A molecule is smaller than an atom.

Back

False

Front

The substances listed on the right side of a chemical equation are called what?

Back

Products

Front

How many molecules of Carbon are in the formula 3C2H6?

Back

3

Front

Identify the reactants and products in the reaction: Hydrogen + Oxygen → Water.

Back

Hydrogen and oxygen are the reactants, and water is the product.

Front

How many atoms are in Ca2(CrO7)3?

Back

29

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What are reactants in a chemical equation?

Back

Substances that undergo a chemical change.

Front

What are products in a chemical equation?

Back

Substances formed as a result of a chemical reaction.

Front

What does the coefficient in a chemical formula represent?

Back

The number of molecules or atoms of a substance.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.