Which Species Is Oxidized in the Reaction Below

question 19

Multiple Choice

Which species is oxidized in the reaction below?
Au(s) + 3NO₃^-(aq) + 6H⁺(aq) → Au³⁺(aq) + NO(g) + 3H₂O (l)
H⁺
N⁺⁵
O^2-
H₂O
Au

• A)H⁺
• B)N⁺⁵
• C)Au
• D)O^2-
• E)H₂O

---

Definitions:

Accumulated Depreciation

The total amount of depreciation expense that has been recorded against a fixed asset since it was put into use.

Residual Value

The estimated value that an asset will have at the end of its useful life.

Double-declining-balance

A method of accelerated depreciation calculating a larger depreciation charge in the first year of an asset's life and progressively smaller charges in subsequent years.

Depreciation Expense

The portion of the cost of a fixed asset that is charged as an expense in a particular accounting period, reflecting the asset's usage and wear and tear.