Final Review (Part 1 )

Front

What type of reaction releases energy in the form of heat?

Back

Exothermic reaction

Front

How many atoms of Hydrogen are in the compound H2O?

Back

2

Front

Which subatomic particle is positively charged?

Back

Protons

Front

What determines the mass number of an atom?

Back

The sum of the number of protons and neutrons

Front

What are the substances formed as a result of a chemical reaction?

Back

Products

Front

What is the term for the starting materials in a chemical reaction?

Back

Reactants

Front

What is the charge of neutrons?

Back

Neutral (no charge)

Front

What is the smallest unit of an element that retains its properties?

Back

Atom

Front

What is the term for a substance made of two or more different elements chemically bonded together?

Back

Compound

Front

What is the process called when a solid turns into a gas without becoming liquid?

Back

Sublimation