A. Balance the following half-reaction in base, using smallest whole number coefficients. What is the coefficient for OH- in the balanced equation?
CrO42-(aq) â†' Cr(OH)3(s)
B. Balance the following reaction in acid, using smallest whole number coefficients. What is the coefficient for H2O in the balanced equation?
Ga(s) + MnO4-(aq) â†' Ga3+(aq) + Mn2+(aq)