Which mass is easily forgotten about when trying to prove the law of conservation of mass in a chemical reaction.

1water
2salt
3gas
4rock

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Why are people not able to skip a dive to the deepest part of the ocean

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium