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?

The correct molecular formula for glucose is **C. C6H12O6**.

Glucose, as a 6-carbon sugar, consists of 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.

Now, for the compounds described:

1. A compound is nitrogen mixed with oxygen. (This likely refers to a nitrogen oxide, but it's not specified.)

2. B compound is mixed with two balls of hydrogen and one oxygen. (This likely refers to water or hydrogen peroxide, though the context is unclear.)

3. C is mixed with one nitrogen and 2 oxygen. (This is likely to be nitrous oxide (N₂O) or nitrogen dioxide (NO₂), again context is unclear.)

4. D is mixed with one carbon and two oxygen. (This likely refers to carbon dioxide (CO₂).)

If you need more specific names or formulas for B and C, please provide further details.