In Which of the Following Pairs of Chemical Formulas Do

question 51

Multiple Choice

In which of the following pairs of chemical formulas do both formulas represent compounds?

• A) O₂ and O₃
• B) CO₂ and O₂
• C) HCN and N₂
• D) N₂O₄ and NO₂

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Definitions:

Plume

1. A rising mass of mostly solid mantle material, thought to be the causal mechanism of a hot spot. 2. A mass of groundwater contamination that spreads out away from the source.

Groundwater Contamination

The presence of harmful substances in groundwater, resulting from pollutants entering the aquifer system.

Cone of Contamination

A theoretical zone surrounding a drilling site where pollution or contamination can spread, affecting surrounding soil or groundwater.

Anhedonia

A condition characterized by a diminished ability to experience pleasure or interest in normally enjoyable activities.