Mechanical, because the other two make no sense and mechanical energy is the combination of kinetic and potential energy, or moving and still respectively.
Answer:
904.8 kg / m3
Explanation:
19.0 kg/0.021 m^3 = 904.761905 kg / m3
56.0774 g/mol just took the test
I say the answer is The ratio of oxygen atoms to hydrogen atoms in a molecule of sugar is 2 to 1