What Elements Are Present, and How Many Atoms of Each

question 23

Multiple Choice

What elements are present, and how many atoms of each are in the compound MgCl₂?

• A)1 atom of magnesium and 2 atoms of cobalt
• B)1 atom of magnesium and 2 atoms of chlorine
• C)2 atoms of magnesium and 1 atom of cobalt
• D)2 atoms of magnesium and 1 atom of chlorine

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An operating system developed by Microsoft Corporation, widely used in personal computers and devices.

Kodak Disc

A film format introduced by Kodak in the 1980s for still photography, using a disc-shaped film cassette, now mostly obsolete.

Marginal Utility

The incremental pleasure or usefulness attained by consuming an extra unit of a good or service.

Total Utility

The overall satisfaction or pleasure a person derives from consuming a certain amount or quantity of goods or services.