What is the maximum possible concentration of Ni2+ ion in water at 25oC that is saturated with 0.070 M H2S and maintained at pH 3.0 with HCl? H2S(aq) ⇆ H+(aq) + HS-(aq) Ka1 = 1.0×10-7 HS-(aq) ⇆ H+(aq) + S2-(aq) Ka2 = 1.0×10-19 Ksp = [NiS] = 3×10-21

Why does a cake rise when you bake it? ♡

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided

Rank the four gases (air, exhaled air, gas produced from from decomposition of h2o2, gas from decomposition of nahco3) in order of increasing concentration of co2