Question

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 AA
B BB
C CC
D DD
Question 2
Glucose is a 6-carbon sugar made by autotrophs in the process of photosynthesis. It is a compound formed from three elements: carbon, hydrogen, and oxygen. The ratio of hydrogen to carbon and oxygen in glucose is always 2:1:1. What is the correct molecular formula for glucose?
Responses
A C2HOC 2 HO
B C6H12O12C 6 H 12 O 12
C C6H12O6C 6 H 12 O 6
D C6H3O3

Answer 1

For your first question regarding which compound has the formula NO2, without seeing the specific combinations and ratios in your model, I can't determine which of the options (AA, BB, CC, DD) corresponds to that formula. However, NO2 is nitrogen dioxide, which indicates it contains 1 nitrogen atom and 2 oxygen atoms.

For your second question about the molecular formula for glucose, the correct answer is:

C. C6H12O6

This reflects the actual number of carbon, hydrogen, and oxygen atoms present in one molecule of glucose.