Naturally occurring iron contains:
5.82% 54fe (atomic mass = 53.940 amu)
91.66 % 56fe (atomic mass = 55.935 amu)
2.19% 57fe (atomic mass = 56.935 amu)
0.33% 58fe (atomic mass = 57.933 amu)
calculate the average atomic mass of iron.

What are the major products produced in the combustion of c10h22 under the following conditions? write balanced chemical equations for each. a. an excess of oxygen b. a slightly limited oxygen supply c. a very limited supply of oxygen d. the compound is burned in air

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.

How many moles of cu are needed to react with 5.8 moles of agno3? cu + 2 agno3 → cu(no3)2 + 2 ag