Write a Balanced Chemical Equation for the Oxidation of Solid $\ell$

question 8

Multiple Choice

Write a balanced chemical equation for the oxidation of solid cadmium by concentrated nitric acid, producing nitrogen dioxide gas and Cd²⁺(aq) ion.

• A) HNO₃(aq) + Cd(s) ? Cd²⁺(aq) + NO₂(g) + OH^-(aq)
• B) 2 HNO₃(aq) + Cd(s) ? Cd²⁺(aq) + 2 NO₂(g) + 2 OH^-(aq)
• C) HNO₃(aq) + Cd(s) + H⁺(aq) ? Cd²⁺(aq) + NO₂(g) + H₂O( \(\ell\) )
• D) 4 HNO₃(aq) + Cd(s) ? Cd²⁺(aq) + 2 NO₂(g) + 2 H₂O( \(\ell\) ) + 2 NO₃^-(aq)
• E) HNO₃(aq) + Cd(s) ? Cd²⁺(aq) + NO₂(g)

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Definitions:

Aging of Receivable Method

An accounting technique used to estimate bad debts by analyzing accounts receivable based on the length of time they have been outstanding.

Allowance for Doubtful Accounts

A contra-asset account that represents the amount of receivables a company does not expect to actually collect.

Bad Debts Expense

An expense account reflecting the cost of accounts receivable that a company does not expect to collect due to customer defaults.

Allowance Method

An accounting technique used to account for bad debts by estimating and recording uncollectible accounts receivable.