Question

1. Balance the reaction between Mg and NO₃^- to form Mg²⁺ and HNO₂ in acidic solution.

When you have balanced the equation using the smallest integers possible, enter the coefficients of the species shown. Enter "1" if the coefficient is "1."

Mg + NO₃ $\rightarrow$ Mg²⁺ + HNO₂

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

How many electrons are transferred in this reaction? _______

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2. Balance the following net ionic equation:

Al(s) + Cu²⁺(aq) $\rightarrow$ Al³⁺(aq) + Cu(s)

Answer the following questions to identify the oxidizing agent, the reducing agent, the substance oxidized, and the substance reduced. Write balanced half-reactions and the balanced net ionic equation.

Which species is oxidized? ________

Which species is reduced? ________

How many electrons are transferred in the balanced chemical equation? __________

Answer 1