Yes! This is a simple module, isn't it? As we saw earlier, there are \(2\) atoms of Hydrogen and \(1\) atom of Oxygen in

**1 molecule**of water. \(2\) atoms of Hydrogen weigh \(2 \, \mathrm{amu}\), and \(1\) atom of Oxygen weighs \(16 \, \mathrm{amus}\)If you have forgotten, let us recall what proportion means. If a mixture is made up of \(4 \, \mathrm{kgs}\) of Object A, and \(8 \, \mathrm{kgs}\) of Object B, the proportion of A to B in the mixture by weight is \(4:8 = \frac{4}{8} = 1:2\).

By weight, what is the proportion of Hydrogen to Oxygen in 1 molecule of water?

- 1:16
- 1:8
- 1:4
- 4:1