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Chemical Reactions Chapter 5.

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Presentation on theme: "Chemical Reactions Chapter 5."— Presentation transcript:

1 Chemical Reactions Chapter 5

2 Chemical Reactions Evidence -

3 Chemical Reactions Evidence - New materials

4 Chemical Reactions Evidence - New materials Precipitate

5 Chemical Reactions Evidence - New materials Precipitate Energy change

6 Chemical Reactions Precipitate -

7 A solid that forms from a chemical reaction
Chemical Reactions Precipitate - A solid that forms from a chemical reaction

8 Chemical Reactions Energy change -

9 Chemical Reactions Energy change - Endothermic

10 Chemical Reactions Energy change - Endothermic

11 Chemical Reactions Energy change - Endothermic Entering

12 Chemical Reactions Energy change - Endothermic

13 Chemical Reactions Energy change - Endothermic Heat

14 Chemical Reactions Energy change - Endothermic

15 Chemical Reactions Energy change - Endothermic Entering Heat

16 Energy change - Endothermic Chemical reaction that takes in energy
Chemical Reactions Energy change - Endothermic Chemical reaction that takes in energy

17 Chemical Reactions Energy change - Endothermic Cold to the touch

18 Chemical Reactions Energy change -

19 Chemical Reactions Energy change - Exothermic

20 Chemical Reactions Energy change - Exothermic

21 Chemical Reactions Energy change - Exothermic Exiting

22 Chemical Reactions Energy change - Exothermic

23 Chemical Reactions Energy change - Exothermic Heat

24 Chemical Reactions Energy change - Exothermic

25 Chemical Reactions Energy change - Exothermic Exiting Heat

26 Energy change - Exothermic Chemical reaction that gives off energy
Chemical Reactions Energy change - Exothermic Chemical reaction that gives off energy

27 Chemical Reactions Energy change - Exothermic Hot to the touch

28 Chemical Reactions Chemical reactions occur when chemical bonds break or when chemical bonds form.

29 Chemical Reactions Chemical Formula

30 Chemical Reactions Chemical Formula Symbols and numbers used to represent a compound or element

31 Chemical Reactions Chemical Formula

32 Chemical Reactions Chemical Formula H2O

33 Chemical Reactions Chemical Formula H2O CO2

34 Chemical Reactions Chemical Formula H2O CO2 HCl

35 Chemical Reactions Chemical Formula H2O CO2 HCl NO3

36 Chemical Reactions Chemical Formula H2O CO2 HCl NO3 NaCl

37 Chemical Reactions Chemical Formula H2O CO2 HCl NO3 NaCl NaOH

38 Chemical Reactions Chemical Equation

39 Chemical Reactions Chemical Equation Symbols and formulas used to represent a chemical reaction

40 Chemical Reactions Chemical Equation

41 Chemical Reactions Chemical Equation H2

42 Chemical Reactions Chemical Equation H2 +

43 Chemical Reactions Chemical Equation H2 + O2

44 Chemical Reactions Chemical Equation H2 + O2 ---->

45 Chemical Reactions Chemical Equation H2 + O2 ----> H2O

46 Chemical Reactions Chemical Equation H2 + O2 ----> H2O Reactants

47 Chemical Equation H2 + O2 ----> H2O Reactants Products
Chemical Reactions Chemical Equation H2 + O2 ----> H2O Reactants Products

48 Chemical Equation H2 + O2 ----> H2O Reactants Products
Chemical Reactions Chemical Equation H2 + O2 ----> H2O Reactants Products Materials you START with

49 Chemical Equation H2 + O2 ----> H2O Reactants Products
Chemical Reactions Chemical Equation H2 + O2 ----> H2O Reactants Products Materials you START with Materials you END with

50 Chemical Equation H2 + O2 ----> H2O Reactants Products
Chemical Reactions Chemical Equation H2 + O2 ----> H2O Reactants Products

51 Chemical Equation H2 + O2 ----> H2O Reactants Products
Chemical Reactions Chemical Equation H2 + O2 ----> H2O Reactants Products LEFT side of the arrow

52 Chemical Equation H2 + O2 ----> H2O Reactants Products
Chemical Reactions Chemical Equation H2 + O2 ----> H2O Reactants Products LEFT side of the arrow RIGHT side of the arrow

53 Chemical Reactions Chemical Equation

54 Chemical Reactions Chemical Equation The TOTAL mass of the Reactants MUST equal the TOTAL mass of the Products

55 Chemical Reactions

56 Chemical Reactions Chemical Equation 4 Types

57 Chemical Reactions Chemical Equation 4 Types Synthesis

58 Chemical Reactions Chemical Equation 4 Types Synthesis Decomposition

59 Chemical Equation 4 Types Synthesis Decomposition Single Replacement
Chemical Reactions Chemical Equation 4 Types Synthesis Decomposition Single Replacement

60 Chemical Equation 4 Types Synthesis Decomposition Single Replacement
Chemical Reactions Chemical Equation 4 Types Synthesis Decomposition Single Replacement Double Replacement

61 Chemical Reactions Chemical Equation Synthesis

62 Chemical Equation Synthesis
Chemical Reactions Chemical Equation Synthesis 2 or more simple substances combine to form a more complex substance

63 Chemical Equation H2 + O2 H2O Synthesis
Chemical Reactions Chemical Equation Synthesis 2 or more simple substances combine to form a more complex substance H2 + O2 H2O

64 Chemical Reactions Chemical Equation Decomposition

65 Chemical Equation Decomposition
Chemical Reactions Chemical Equation Decomposition A complex substance breaks down into simple substances

66 Chemical Equation H2O H2 + O2 Decomposition
Chemical Reactions Chemical Equation Decomposition A complex substance breaks down into simple substances H2O H2 + O2

67 Chemical Reactions Chemical Equation Single Replacement

68 Chemical Equation Single Replacement
Chemical Reactions Chemical Equation Single Replacement A single element replaces part of a compound

69 Chemical Equation Single Replacement Zn + HCl ZnCl2 + H2
Chemical Reactions Chemical Equation Single Replacement A single element replaces part of a compound Zn + HCl ZnCl2 + H2

70 Chemical Reactions Chemical Equation Double Replacement

71 Chemical Equation Double Replacement
Chemical Reactions Chemical Equation Double Replacement A single element from a compound replaces a single element from another compound

72 Chemical Equation Double Replacement NaOH + HCl H2O + NaCl
Chemical Reactions Chemical Equation Double Replacement A single element from a compound replaces a single element from another compound NaOH + HCl H2O + NaCl


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