Why is this equation not balanced? H2 + O2 + H2O
There are more hydrogen atoms on the reactant side than the product side
There are more oxygen atoms on the product side than the reactant side
There are more oxygen atoms on the reactant side than the product side
There are more hydrogen atoms on the product side than the reactant side
PLS HELP

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.