Chemical Equations

Front

How many Hydrogen (H) atoms are in 4NH₃?

Back

12

Tags

NGSS.MS-PS1-1

Front

In the equation N₂ + H₂ → NH₃, what are the reactants?

Back

N₂ + H₂

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Front

What does the number 4 represent in 4NH₃?

Back

Coefficient

Front

Is the equation N₂ + 3H₂ → 2NH₃ balanced?

Back

Yes

Tags

NGSS.MS-PS1-5

Front

Is the equation N₂ + H₂ → NH₃ balanced?

Back

No

Tags

NGSS.MS-PS1-5

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Tags

NGSS.MS-PS1-5

Front

What is a reactant?

Back

A substance that undergoes change in a chemical reaction.

Tags

NGSS.MS-PS1-2

Front

What is a product?

Back

A substance that is formed as a result of a chemical reaction.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Tags

NGSS.MS-PS1-5

Front

What is a coefficient in a chemical equation?

Back

A number placed in front of a chemical formula to indicate the number of molecules.

Tags

NGSS.MS-PS1-5