Physical Science A Final

Front

What type of reaction is represented by the equation Pb(NO3)2 → PbO + NO2 + O2?

Back

Decomposition reaction: A reaction where a single compound breaks down into two or more simpler products.

Front

What is a candle wick burning an example of?

Back

Chemical reaction: A process that involves the transformation of substances.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What are the subatomic particles that make up an atom?

Back

Electrons, protons, and neutrons.

Tags

NGSS.MS-PS1-1

Front

What does a chemical reaction involve?

Back

A process that changes the composition of substances, resulting in the formation of new substances.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is the difference between a chemical property and a physical property?

Back

Chemical properties describe a substance's ability to undergo changes that transform it into different substances, while physical properties can be observed without changing the substance's composition.

Front

What is an example of a physical property?

Back

Color, boiling point, and density are examples of physical properties.

Front

What is a synthesis reaction?

Back

A reaction where two or more substances combine to form a new compound.

Tags

NGSS.MS-PS1-1

Front

What is a physical change?

Back

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

Front

What is an example of a decomposition reaction?

Back

The breakdown of hydrogen peroxide (H2O2) into water (H2O) and oxygen (O2).

Front

What is combustion?

Back

A chemical reaction that occurs when a substance reacts rapidly with oxygen, producing heat and light.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5