Suggest a reasonable mechanism for the conversion of a nitrile (rcn) to the corresponding amide in aqueous acid.

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

How many grams are in 68.2 molecules of br2?

What physical property of gold makes panning a useful way to get gold from streams?