Law of Conservation of Mass

Front

What does the number ₃ represent in 4NH₃?

Back

The number of hydrogen atoms in each molecule.

Front

What does the number 4 represent in 4NH₃?

Back

The number of molecules.

Front

How many Nitrogen (N) atoms are in 4NH₃?

Back

4

Front

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

Back

12

Front

In the equation shown, what are the reactant(s)?

Back

N₂ + H₂

Front

In the equation shown, what are the product(s)?

Back

NH₃

Front

Is this equation balanced?

Back

No

Front

Is this equation balanced?

Back

No

Front

Is this equation balanced?

Back

Yes

Front

To balance an equation you should:

Back

ONLY change coefficients.