Chemistry Unit 2

Front

A change that alters the form or appearance of a material but does not make the material into another substance is called _____________________

Back

Physical change

Front

What is two or more substances that are together in the same place but their atoms are not chemically bonded?

Back

Mixture

Front

Is glass breaking a chemical or physical change?

Back

Physical change

Front

A measurement of the number of particles in a substance in a given amount of space is called _____________________.

Back

Density

Front

What are the 3 particles that make up the atom?

Back

Protons, neutrons, and electrons

Front

What is a substance made of only one type of atom?

Back

Element

Front

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

Back

Atom

Front

What is a combination of two or more elements that are chemically bonded together?

Back

Compound

Front

What is the process called when a solid turns into a liquid?

Back

Melting

Front

What is the process called when a liquid turns into a gas?

Back

Evaporation