Write a Balanced Equation for the Oxidation of Gold by Aqua

question 47

Multiple Choice

Write a balanced equation for the oxidation of gold by aqua regia.

• A) Au(s)+ 4H⁺(aq)+ 4Cl−(aq)+ NO₃−(aq)→ AuCl₄−(aq)+ NO(g)+ 2H₂O(l)
• B) Au(s)+ 4H⁺(aq)+ NO₃−(aq)→ Au³⁺(aq)+ NO(g)+ 4H₂O(l)
• C) 2Au(s)+ 6H₂O(l)→ 2Au(OH)₃(s)+ 3H₂(g)
• D) 2Au(s)+ 6H⁺(aq)+ 6NO₃−(aq)→ 2Au³⁺(aq)+ NO₃−(aq)+ 3H₂(g)
• E) 4Au(s)+ 8CN−(aq)+ O₂(g)+ 2H₂O(l)→ 4Au(CN)₂−(aq)+ 4OH−(aq)

---

Definitions:

Digital Technology

Refers to electronic tools, systems, devices, and resources that generate, store, or process data.

Self-regulation

The process by which individuals or organizations monitor and control their own behavior, actions, and standards.

Fairly

In a manner that is just, equitable, and in accordance with accepted standards of behavior or treatment.

Geek Squad

A service provider specializing in tech support and technology solutions for individuals and businesses, often associated with Best Buy.