It's B, because a negative charged Ion is an anion. And since it's 1- ,one valence electron is been added to H. So it has 2 valence electrons.
Only a few ions (in comparison to others that totally break apart)
Answer:
2(H2) + 1(O2) = 2 (H2O) is the balanced equation
The answer Is C.the layer of rock they're found in
