What's the easiest way to find balance in a chemical equation? a. calculus b. multiply the number of molecules by two, then divide by the number of atoms c. trial and error

Balance the following reaction. as2s3 + 9o2 → 2as2o3 + so2

When electrons are removed from the outermost shell of a calcium atom, the atom becomes an anion that has a larger radius than the atom. an anion that has a smaller radius than the atom. a cation that has a larger radius than the atom. a cation that has a smaller radius than the atom.

Rank the compounds below from slowest to fastest rate of hydration. 1) formaldehyde 2) 3,3-dimethyibutan-2-one 3) propanal 4)3-methylbutan-2-one 5) butan-2-one