The atomic mass of iron is 55.85, and oxygen is 16.0. what is the mass of 6.02 × 1023 molecules of fe2o3?
a. 71.85 g

b. 143.7 g

c. 159.7 g

d. 199.55 g

e. 215.55 g

Determine the energy released per kilogram of fuel used. given mev per reaction, calculate energy in joules per kilogram of reactants. consider 1 mole of tritium plus 1 mole of deuterium to be a mole of “reactions” (total molar mass = 5 grams).

Sulfuric acid (a component of acid rain) reacts with limestone (calcium carbonate) to produce calcium sulfate and carbon dioxide. this damages buildings and statues made of limestone. which solution of sulfuric acid will damage these structures more quickly? a. 0.001% b. 0.005% c. 0.010% d. 0.015%

Most metamorphosis processes take place