I need help balancing these Equations....??

Question

23. barium chloride + sulfuric acid >>>> barium sutfate (s) + hydrochloric acid
24. aluminum sulfate + calcium hydroxide >>>> aluminum hydroxide (s) + calcium sulfate (s)
25. copper + chlorine >>> copper(I) chloride (s)
26. aluminum oxide >>>> aluminum (1) + oxygen (g)

Complete the word equation & write the balanced equation. Identify the type of reaction and tell why the products form. Consult the Activity Series as necessary:::
27. calcium + oxygen >>>>
28. copper(II) carbonate>>>>
29. aluminum + hydrochloric acid >>>>
30. potassium iodide + chlorine >>>>
31. barium chloride + sodium sulfate >>>>
32. copper + silver nitrate >>>> copper(II) nitrate +
33. barium hydroxide + sulfuric acid>>>>
34. zinc sulfate + ammonium sulfide>>>>
35. sodium + water >>>>
36. magnesium + sulfuric acid >>>>
37. Mercury(II) oxide >>>>

Thanks for Helping!

Answer 1

23. BaCl2 + H2SO4 => BaSO4(s) + 2HCl
24. Al2(SO4)3 + 3Ca(OH)2 = 2Al(OH)3 + 3CaSO4(s)
25. 2Cu + Cl2 >>> 2CuCl
26. 2Al2O3 >>>> 4Al + 3O2

Complete the word equation & write the balanced equation. Identify the type of reaction and tell why the products form. Consult the Activity Series as necessary:::
27. 2Ca + O2 >>>> 2CaO
28. CuCO3>>>> CuO + CO2
29. 2Al + 6HCl >>>>2AlCl3 + 3H2
30. 2KI + Cl2 >>>> 2KCl + I2
31. BaCl2 + Na2SO4 >>>> BaSO4(s) + 2NaCl
32. Cu + 2AgNO3 >>>> Cu(NO3)2 + 2Ag
33. Ba(OH)2 + H2SO4>>>> BaSO4(s) + 2H2O
34. ZnSO4 + Al2(SO3)3>>>>
35. 2Na + 2H2O >>>> 2NaOH + H2
36. Mg + H2SO4 >>>> MgSO4 + H2
37. 2HgO >>>> 2Hg + O2

Answer 2

23.BaCl2 +H2SO4---->.Ba2SO4 +2HCl
24.Al2(SO4)3 +3Ca(OH)2---> 2AL(OH)3+3CaSO4
25.Cu + Cl2-----> CuCl2
26. Al2O3-----> 2Al +3/2O2