balance the following redox reaction if it occurs in acidic solution. what are the coefficients in front of ni and h in the balanced reaction? ni2 (aq) nh4 (aq) → ni(s) no3-(aq) balance the following redox reaction if it occurs in acidic solution. what are the coefficients in front of ni and h in the balanced reaction? ni2 (aq) nh4 (aq) → ni(s) no3-(aq) ni