0.5 mg/mL would be expressed as 500 ug/uL
Three is simply the coefficient which tells you the amount of molecules. In this case, there are three carbon dioxide molecules. If you want to break it down further, it also means there is three carbon atoms and six oxygen atoms.
I hope this helps.
So scientist around the world can share there info without having to convert and doing extra work.
Answer:
More Energy
Explanation:
Energy is required to break bonds
