When the following equation is balanced properly under acidic conditions, what are the coefficients of the species shown?

HAsO2 + Cr3+H3AsO4 + Cr

Water appears in the balanced equation as a fill in the blank 5 (reactant, product, neither) with a coefficient of . (Enter 0 for neither.)

How many electrons are transferred in this reaction? 

1.

When the following equation is balanced properly under basic conditions, what are the coefficients of the species shown?

Br^- + SnO₃^2- ---------> SnO₂^2- + Br₂

Water appears in the balanced equation as a (reactant, product, neither?) with a coefficient of _____ . (Enter 0 for neither.)

Which element is oxidized?

2. When the following skeletal equation is balanced under basic conditions, what are the coefficients of the species shown?

I^- + Ag₂O --------> I₂ + Ag

Water appears in the balanced equation as a (reactant, product, neither?) with a coefficient of ______. (Enter 0 for neither.)

Which species is the reducing agent?

When the following equation is balanced properly under basic conditions, what are the coefficients of the species shown?

___PH3 + ____N2H4 ->___P + ____NH3

Water appears in the balanced equation as a (reactant, product, neither) with a coefficient of ____. (Enter 0 for neither.) Which element is reduced?_____