How many atoms of hydrogen would four molecules of water H20 have?

8

4

1

2

4

To determine the number of hydrogen atoms in four molecules of water (H2O), we need to consider that each water molecule has 2 hydrogen atoms.

Step 1: Multiply the number of water molecules by the number of hydrogen atoms per molecule.
4 molecules x 2 hydrogen atoms/molecule = 8 hydrogen atoms

Therefore, four molecules of water (H2O) would have 8 hydrogen atoms.

To determine the number of atoms of hydrogen in four molecules of water (H2O), we need to understand that each water molecule consists of two hydrogen atoms and one oxygen atom.

To calculate the total number of hydrogen atoms, we multiply the number of water molecules by the number of hydrogen atoms in one water molecule.

So, for four water molecules, we have 4 x 2 = 8 hydrogen atoms.

Therefore, the correct answer is 8.