Question

What makes up a water molecule?

A. two atoms of oxygen and one atom of hydrogen
B. one atom of oxygen and two atoms of helium
C. one atom of oxygen and one atom of hydrogen
D. one atom of oxygen and two atoms of hydrogen
E. two atoms of oxygen and two atoms of helium

Answer 1

The answer is d. 2 hydrogen and 1 oxygen

think about the formula h2o h2 means 2 hydrogen and the one o means one oxygen so that would make the answer d.