How Many Phosphorus Atoms Are Represented by One Formula Unit

question 35

Multiple Choice

How many phosphorus atoms are represented by one formula unit of cobalt(II) phosphate, Co₃(PO₄) ₂?

• A) 2
• B) 4
• C) 6
• D) 8
• E) 1

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Definitions:

Ordovician

A geological period, approximately 485 to 444 million years ago, marked by significant diversification of life, especially in marine environments.

Cretaceous

A geological period from about 145 to 66 million years ago, known for the dominance of dinosaurs and ending with their mass extinction.

Pleistocene

The geological epoch lasting from about 2.6 million to 11,700 years ago, characterized by the last period of significant ice ages.

Triassic

A geologic period and system that spans from about 252 to 201 million years ago, marking the beginning of the Mesozoic Era.