Which One of the Following Represents a Chemical Change

question 126

Multiple Choice

Which one of the following represents a chemical change?

• A)Mercury (II)oxide is heated to and forms mercury metal and oxygen gas.
• B)Rubbing alcohol evaporates.
• C)Iodine vapor deposits on a surface.
• D)Iron metal is separated from sand using a magnet.
• E)Rock salt is pulverized.

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Definitions:

Retail Price

The price at which a product is sold to the public, usually after including costs of production, distribution, and a markup for profit.

Ensure Freshness

Measures or practices used to maintain the quality and safety of perishable products.

Refrigerator

An electrical appliance used for keeping food and drinks cold, playing a crucial role in modern food preservation and safety.

Double Marginalization

A situation in a supply chain where both the manufacturer and retailer mark up prices above their marginal costs, leading to inefficiencies.