4times H_(2)O What do all of these compounds have in common? A They are all ionic. B They are all covalent. C They all are positively charged. D They all are negatively charged.

The question is asking about the commonality among the given compounds. The compounds listed are $4\times H_{2}O$, which is a molecule of water multiplied by 4. Water is a covalent compound, meaning it is formed by the sharing of electrons between atoms. Therefore, the correct answer is B, they are all covalent. The other options are incorrect because not all covalent compounds are ionic, positively charged, or negatively charged.