What molecules can produce more energy per gram than sugars and are used for storing energy in animals?
a. carbohydrates
b. proteins
c. lipids
d. hydrocarbons

What’s the percent by mass of carbon in c10h14n2

Particles vibrate in a rigid structure and do not move relative to their neighbors.

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.