Answer:
The law of constant composition states that the proportions of the elements in a compound are always the same, no matter how the compound is made.
Answer:
Water is most dense as a liquid, then as a solid, and least dense as a gas. Gravity pulls denser air and water downward, forcing less dense air and water to move upward. The warm water near the surface of the ocean heats up with sunlight and evaporates, keeping the water cycle in motion.
Explanation:
Fusion creates less radioactive material and has nearly an unlimited fuel supply. Fusion also makes several times more energy than fission.
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.