A Mixture of Iron,salt,and Sand Can Be Separated Using a Magnet,water,a

question 29

Multiple Choice

A mixture of iron,salt,and sand can be separated using a magnet,water,a filter,and a hot plate.This separation:

• A) involves both chemical and physical changes.
• B) involves only chemical changes or processes.
• C) involves only physical changes or processes.
• D) cannot be done with the materials listed.

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Definitions:

Purely Competitive Conditions

describes a market structure with many buyers and sellers, where each firm has no control over the market price and products are homogeneous.

Equilibrium

A state in which market demand is equal to market supply, with no external forces causing disruption, leading to a stable price and quantity.

MPs

Members of Parliament, individuals elected to represent constituencies in the legislative body of a parliamentary government.

Wage Rate

The standard amount of compensation paid to employees per unit of time worked, such as an hour or a year.