Counting Atoms Review

Front

What does the coefficient represent?

Back

The number of molecules.

Front

How many Hydrogen (H) atoms are in 4 H2O?

Back

8

Front

The blue numbers in a chemical formula represent ________

Back

subscripts.

Front

How many Potassium (K) atoms are in 8 KCl?

Back

8

Front

How many Chlorine (Cl) atoms are in 7 Cl2?

Back

14

Front

What is a subscript in a chemical formula?

Back

A number written below and to the right of an element symbol indicating the number of atoms of that element in a molecule.

Front

What is the difference between a coefficient and a subscript?

Back

A coefficient indicates the number of molecules, while a subscript indicates the number of atoms in a molecule.

Front

How many total atoms are in 2 H2O molecules?

Back

6 (4 H + 2 O).

Front

What does the term 'yield' refer to in a chemical equation?

Back

The amount of product formed in a chemical reaction.

Front

In the formula 3 NaCl, what does the '3' represent?

Back

The number of NaCl molecules.