Q 1.Balance the given reaction by filling in the correct coefficients: [x] AsH3 (s) ? [y] As (s) + [z] H2(g) *Use a coefficient of 1 if needed, but keep in mind that this will typically be omitted. 2.Balance the given reaction by filling in the correct coefficients: [a] K2C2O4 (aq) + [b] Ca3(AsO4)2 (s) ? [c] K3AsO4¬ (aq) + [d] CaC2O4 (s) *Use a coefficient of 1 if needed, but keep in mind that this will typically be omitted. 3.A typical cholesterol deposit in an artery contains approximately 1.013 × 10-5 moles of cholesterol. Calculate the number of cholesterol molecules in a typical deposit. *submit your answer in scientific notation using "E". For example, 1.013 x 10-5 would be submitted as 1.013E-5 4.If 12 mol of aluminum are formed from aluminum oxide, how many moles of oxygen will also be produced? 2Al2O3(s) electrolysis? 4Al(s) + 3O2(g) 5.Iron ore is converted into iron by heating it with coal (carbon) & oxygen: 2Fe2O3(s) + 6C(s) + 3O2(g) ? 4Fe(s) + 6CO2(g) What is the molar mass of iron, Fe, in g/mol? Provide your answer to 2 decimal places