How many grams of nitric acid will react completely with a block of iron metal that is 4.5 cm by 3.0 cm by 3.5 cm, if the density of iron is 7.87 g/ml? show all steps of your calculation as well as the final answer. fe + hno3 → fe(no3)3 + h2

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

Modern weaponry has increased the number of deaths in wars and violent conflicts.

Amixture initially contains a, b, and c in the following concentrations: [a] = 0.300 m , [b] = 1.05 m , and [c] = 0.550 m . the following reaction occurs and equilibrium is established: a+2b⇌c at equilibrium, [a] = 0.140 m and [c] = 0.710 m . calculate the value of the equilibrium constant, kc.