I need help ASAP!!! PLEASE HELP!?

Question

1)Calculate the normality of a solution that was prepared by dissolving 43.3 g of barium hydroxide in enough water to make 2160.0 mL of solution.

2)Balance the following equations:
MnO4- (aq) + H+ (aq) + Br- (aq) --> Mn2+ (aq) + Br2 (l) + H2O (l)

MnO4- (aq) + H2O (l) + NO2- (aq) --> MnO2 (s) + NO3- (aq) + OH- (aq)

3) Balance the following equation for a reaction in acidic solution. Only H+ or H2O may be added.
Cl2(g) --> ClO3-(aq) + Cl-(aq)

4)The following reaction occurs in basic solution. Balance it by adding only OH- or H2O.

N2H4(aq) + Cu(OH)2(s) --> N2(g)+ Cu(s)

5) Oxygen gas can be generated by heating KClO3 in the presence of some MnO2.
2KClO3 --> 2KCl + 3O2

If all the KClO3 in a mixture containing 2.07 g KClO3 and 0.30 g MnO2 is decomposed, how many liters of O2 gas will be generated at T = 28.0oC and P = 754.8 torr?

THANK YOU!!!!!

Answer 1

Sorry, your query isn't worth 10 points to complete.