Balance the following chemical equations
(a) ___Fe  +   ____Cl2 ___ ____FeCl3 
(b) ___Fe+ ___O2 ___ ___Fe2O3
(c) ___FeBr3 + ___H2 SO4 ___ ___Fe2 (SO4 ) 3 +___ HBr 
(d) ___C4H6O3 + ___H2O ___ ___C2H4O2
(e) ___C2H4 + ___O2 ___ ___CO2 + ___H2O 
(f) ___C4H10O+ ___O2 ___ ___CO2 + ___H2O 
(g) ___C7H16 + ___O2 ___ ___CO2 + ___H2O 
(h) ___H2 SiCl2 + ___H2O ___ ___H8 Si4O4 + ___HCl 
(i) ___HSiCl3 + ___H2O ___ ___H10Si10O15 + ___HCl 
(j) ___C7H9 + ___HNO3 ___ ___C7H6 (NO2 ) 3 + ___H2O 
(k) ___C5H8O2 + ___NaH + ___HCl ______ C5H12O2 + ___NaCl
For each of the following problems, write complete chemical equations to describe the chemical process taking place. Balance the equations.
1) When lithium hydroxide pellets are added to a solution of sulfuric acid (H2SO4), lithium sulfate and water are formed. 
2) Magnesium reacts with sodium fluoride to produce magnesium fluoride and elemental sodium. 
3) If a copper coil is placed into a solution of silver nitrate, silver crystals form and copper (I) nitrate is generated. 
4) When crystalline C6H12O6 is burned in oxygen, carbon dioxide and water vapor are formed. 
5) Calcium carbonate combines with hydrochloric acid (HCl) to produce calcium chloride, water and carbon dioxide gas.