Answer:
2 Hydrogen atoms
Explanation:
Oxygen's valence shell has 6 electrons, in order to work with the octet rule, the outer shell of Oxygen has to have 8 electrons, and since Hydrogen has one valence electron, it can bond with one of Oxygen's electrons, and another hydrogen atom is placed to bond with the other electron. Resulting in 2 hydrogens bonded to 1 oxygen.
Next time study before a test instead of desperately going through brainly to search answers, it'll help you in the long run.
