Law of Conservation of Mass/Counting Atoms

Front

Uses chemical symbols and numbers to describe what happens in a chemical reaction.

Back

Chemical Equations

Front

Occur when one or more substances are converted to one or more different substances. When this happens, we can observe chemical changes.

Back

Chemical Reactions

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Found on the left side of the chemical equation. These are substances that react with each other to make something new.

Back

Reactants

Tags

NGSS.MS-PS1-5

Front

What is on the right side of a chemical equation or the resulting molecules at the end of the reaction?

Back

Products

Tags

NGSS.MS-PS1-5

Front

The blue numbers in the image below represent ________. It is written after an element symbol that indicates the number of atoms of that element.

Back

subscripts

Front

An arrow sits between the left and the right sides of a chemical equation which means to produce or result in.

Back

Yield

Tags

NGSS.MS-PS1-5

Front

The red numbers in the image below represent ________. It is number written before a formula. If present, it indicates the number of molecules.

Back

Coefficient

Front

Matter cannot be created nor destroyed during chemical reactions.

Back

Law of Conservation of Mass

Tags

NGSS.MS-PS1-5

Front

Chemical formula of water.

Back

H₂O

Tags

NGSS.MS-PS1-1

Front

Chemical equation of a photosynthesis reaction.

Back

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3