Balanced Equations

Front

What are the small numbers in a chemical formula called?

Back

Subscripts

Front

Is the equation 2H2 + O2 → 2H2O balanced?

Back

Yes, everything appears the same amount on each side.

Front

What are the big numbers in a chemical formula called?

Back

Coefficients

Front

How many Chlorine atoms are in 5NaCl?

Back

5

Front

How many Hydrogen atoms are in H2O?

Back

2

Front

What does it mean for a chemical equation to be balanced?

Back

It means that the number of atoms for each element is the same on both sides of the equation.

Front

What is the purpose of coefficients in a chemical equation?

Back

Coefficients indicate the number of molecules or moles of a substance.

Front

What is the chemical formula for water?

Back

H2O

Front

How many oxygen atoms are in the formula 3O2?

Back

6

Front

What is the total number of atoms in the formula 2NaCl?

Back

4 (2 Sodium + 2 Chlorine)