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Balancing Chemical Equations. CA Standards. Students know how to describe chemical reactions by writing balanced equations. Law of Conservation of Mass. In ordinary chemical reactions, the total mass of reacting substances is equal to the total mass of products

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Balancing Chemical Equations


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Presentation Transcript
ca standards
CA Standards

Students know how to describe chemical reactions by writing balanced equations.

law of conservation of mass
Law of Conservation of Mass
  • In ordinary chemical reactions, the total mass of reacting substances is equal to the total mass of products
    • All atoms on the reactant side must appear on the product side, and in equal numbers
    • No new elements may appear
    • No elements may disappear
synthesis reactions
Synthesis Reactions

1. ___CaO + ___H2O  ___Ca(OH)2

2. ___P4 + ___O2 ___P2O5

3. ___Ca + ___O2 ___CaO

4. ___Cu + ___S8  ___ CuS

5. ___CaO + ___H2O  ___Ca(OH)2

6. ___S8 + ___O2 ___SO2

7. ___H2 + ___N2 ___NH3

8. ___H2 + ___Cl2 ___HCl

9. ___Ag + ___S8 ___Ag2S

10. ___Cr + ___O2 ___Cr2O3

11. ___Al + ___Br2 ___AlBr3

12. ___Na + ___I2 ___NaI

13. ___H2 + ___O2 ___H2O

14. ___Al + ___O2 ___Al2O3

decomposition reactions
Decomposition Reactions

15. ___BaCO3 ___BaO + ___CO2

16. ___MgCO3 ___MgO + ___CO2

17. ___K2CO3 ___K2O + ___CO2

18. ___Zn(OH)2 ___ZnO + ___H2O

19. ___Fe(OH)2 ___FeO + ___H2O

20. ___Ni(ClO3)2 ___NiCl2 + ___O2

21. ___NaClO3 ___NaCl + ___O2

22. ___KClO3 ___KCl + ___O2

23. ___H2SO4 ___H2O + ___SO3

24. ___H2CO3 ___H2O + ___CO2

25. ___Al2O3 ___Al + ___O2

26. ___Ag2O  ___Ag + ___O2

decomposition reactions6
Decomposition Reactions

15. ___BaCO3 ___BaO + ___CO2

16. ___MgCO3 ___MgO + ___CO2

17. ___K2CO3 ___K2O + ___CO2

18. ___Zn(OH)2 ___ZnO + ___H2O

19. ___Fe(OH)2 ___FeO + ___H2O

20. ___Ni(ClO3)2 ___NiCl2 + ___O2

21. ___NaClO3 ___NaCl + ___O2

22. ___KClO3 ___KCl + ___O2

23. ___H2SO4 ___H2O + ___SO3

24. ___H2CO3 ___H2O + ___CO2

25. ___Al2O3 ___Al + ___O2

26. ___Ag2O  ___Ag + ___O2

single replacement reactions
Single Replacement Reactions

27. ___AgNO3 + ___Ni  ___Ni(NO3)2 + ___Ag

28. ___AlBr3 + ___Cl2 ___AlCl3 + ___Br2

29. ___NaI + ___Br2 ___NaBr + ___I2

30. ___Ca + ___HCl ___CaCl2 + ___H2

31. ___Mg + ___HNO3 ___Mg(NO3)2 + ___H2

32. ___ Zn + ___H2SO4 ___ZnSO4 + ___H2

33. ___K + ___H2O  ___KOH + ___H2

34. ___Na + ___H2O  ___NaOH + ___H2

double replacement reactions
Double Replacement Reactions

35. ___AlI3 + ___HgCl2 ____AlCl3 + ____HgI2(ppt)

36. ___HCl + ___NaOH ___NaCl ___H2O

37. ___BaCl2 + ___H2SO4 ___BaSO4 + ___HCl

38. ___Al2(SO4)3 + ___Ca(OH)2 ___Al(OH)3 + ___CaSO4

39. ___AgNO3 + ___K3PO4 ___Ag3PO4 + ___KNO3

40. ___CuBr2 + ___AlCl3 ___CuCl2 + ___AlBr3

41. ___Ca(C2H3O2)2 + ___Na2CO3 ___CaCO3 + ___NaC2H3O2

42. ___NH4Cl + ___Hg2(C2H3O2)2 ___NH4 C2H3O2 + ___Hg2Cl2

43. ___Ca(NO3)2 + ___HCl ___CaCl2 + ___HNO3

44. ___FeS + ___HCl ___FeCl2 + ___H2S

45. ___Cu(OH)2 + ___HC2H3O2 ___Cu(C2H3O2)2 + ___H2O

46. ___Ca(OH)2 + ___H3PO4 ___Ca3(PO4)2 + ___H2O

47. ___CaBr2 + ___KOH  ___Ca(OH)2 + ___KBr

combustion reactions
Combustion Reactions

48. ___CH4 + ___O2 ___CO2 + ___H2O

49. ___C2H6 + ___O2 ___CO2 + ___H2O

50. ___C3H8 + ___O2 ___CO2 + ___H2O

51. ___C4H10 + ___O2 ___CO2 + ___H2O

52. ___C5H12 + ___O2 ___CO2 + ___H2O

53. ___C6H14 + ___O2 ___CO2 + ___H2O

54. ___C2H4 + ___O2 ___CO2 + ___H2O

55. ___C2H2 + ___O2 ___CO2 + ___H2O

56. ___C6H6 + ___O2 ___CO2 + ___H2O