A compound is a pure substance composed of two or more elements, combined by chemical means, in a definite ratio. In the model, you see four elements combined in different combinations and ratios to produce four compounds. Which of the compounds would have the formula NO2?

Responses
A A
B B
C C
D D

1 answer

To determine which compound has the formula NO2, we need to identify the elements involved. The formula NO2 consists of one nitrogen (N) atom and two oxygen (O) atoms.

If we evaluate the four compounds based on their combinations of elements, we should look for the compound that contains one nitrogen atom and two oxygen atoms. Since I don't have the visual model you mention, you'll need to analyze each of the four compounds to see which one matches this requirement.

If you provide more specific descriptions of the compounds A, B, C, and D, I can help you identify the correct one that corresponds to the formula NO2.