Difficulty: Medium
Average Score: 82%
Practice
The formula of water, H O, suggests:
Correct answer
B
Rationale
The formula for water is HÔééO, indicating there are two hydrogen atoms and one oxygen atom per molecule. This is because the subscript 2 in HÔéé represents two hydrogen atoms, and O represents one oxygen atom. Therefore, choice B is correct. Choices A, C, and D are incorrect because they do not accurately represent the composition of water molecules. Choice A suggests twice as much mass of hydrogen than oxygen, which is not true. Choice C suggests twice as much mass of oxygen than hydrogen, which is also incorrect. Choice D implies there are two oxygen atoms in a water molecule, which is inaccurate.