Several statements concerning empirical and molecular formulae are provided. Which one is correct?
- AThe empirical and molecular formulae of a compound are always different.
- BThe empirical formulae of ethyne, $\text{C}_2\text{H}_2$, and benzene, $\text{C}_6\text{H}_6$, are the same.
- CThe molecular formula always shows the simplest whole-number ratio of the different atoms or ions in a compound.
- DThe empirical formula always shows the numbers and types of different atoms in one molecule of a compound.