When Metal a Is Placed in a Solution of Metal

question 40

Multiple Choice

When metal A is placed in a solution of metal ions B²⁺, a reaction occurs between A and B²⁺, and metal ions A²⁺ appear in the solution. When metal B is placed in acid solution, gas bubbles form on its surface. When metal A is placed in a solution of metal ions C²⁺, no reaction occurs. Which of the following reactions would not occur spontaneously?

• A) C(s) + 2H⁺(aq)  H₂(g) + C²⁺(aq)
• B) C(s) + A²⁺(aq)  A(s) + C²⁺(aq)
• C) B(s) + C²⁺(aq)  C(s) + B²⁺(aq)
• D) A(s) + 2H⁺(aq)  H₂(g) + A²⁺(aq)
• E) B(s) + 2H⁺(aq)  H₂(g) + B²⁺(aq)

---

Definitions:

Own Allocation Base

Refers to the specific denominator that a company chooses to allocate indirect costs to different cost objects, based on their usage or benefit from those costs.

Plantwide Overhead Rate

A single overhead absorption rate used throughout a manufacturing facility to allocate overhead costs to products.

Volume-Based Measures

Metrics that quantify outcomes or activities based on the amount or volume of production, sales, or other business operations.

Activity Rate

A ratio used to allocate costs to products or services based on the activities that are required to produce them.