Matter 1 review A

Front

What are elements and compounds?

Back

Elements and compounds are both considered pure substances.

Front

What type of change is toasting bread?

Back

Toasting bread is a chemical change.

Front

What classification of element is Bromine?

Back

Bromine is classified as a nonmetal.

Front

How would you classify the substances: Oxygen, Water, Gold, and Sodium Chloride?

Back

Oxygen is an element, Water is a compound, Gold is an element, Sodium Chloride is a compound.

Front

What does the particle model represent?

Back

The particle model can represent an element, mixture, or compound depending on the arrangement and types of particles.

Front

Define an element.

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

Define a compound.

Back

A compound is a substance formed when two or more elements chemically bond together.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances.

Front

What is the difference between a metal and a nonmetal?

Back

Metals are typically shiny, good conductors of heat and electricity, while nonmetals are usually dull and poor conductors.