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essment : Multiple Choice. Choose the letter of the best answer.
1. Ammonium nitrate (NH4NO3), is a substance used to produce dinitrogen
monoxide(N-0), a dental anesthetic. Determine the mass percent of N in
ammonium nitrate?
a. 35.00%
b. 40.65%
c. 39.50%
d. 43.68%
2. In cold areas, many fish and insects, including the common housefly, produce
large amounts of glycerol (CH3Os) to lower the freezing point of their blood.
What percentage of oxygen is present in glycerol?
1. 52.11%
b. 50.11%
6. $1.11%
& 83.11%​