Question

Na+p=Na3P Mno2+H2=Mn+H2O ОВр

Answer 1

Na(0)-3e->3Na(+1) окисление/востановитель
P(0)+3e->3P(-3)востановление/окислитель
Вторая реакция:
Mn(+4)+4е->Mn(0)востановление/окислитель
H(0)-2e->2H(+1)окисление/востановитель

Answer 2

The given chemical equations can be balanced as follows:

1. Na + P → Na₃P (Sodium + Phosphorus → Sodium Phosphide) This equation is already balanced.

2. MnO₂ + H₂ → Mn + H₂O (Manganese(IV) oxide + Hydrogen → Manganese + Water)

To balance this equation, we need to make sure that the number of each type of atom is the same on both sides of the equation.

Balanced equation: 2 MnO₂ + 4 H₂ → 2 Mn + 4 H₂O

Now let's move on to the third equation, "ОВр." However, it is not clear what you mean by "ОВр." Could you please provide more information or clarify your request?