The answer is D glad to help :)<span />
1) reactants: Ca + O2 (g)
2) Unbalanced equation: Ca + O2 (g) -> CaO
3) Balanced equation: 2Ca + O2 (g) -> 2CaO
Answer:
The answer is B.
Explanation:
They are the strongest type of inter-molecular force attractive forces that can act between atoms. This is why Vander Walls forces important.
Answer:
O Presence of nucleus in cells
Explanation:
