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Template by Bill Arcuri, WCSD Click Once to Begin JEOPARDY! Chemical Equations.

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Presentation on theme: "Template by Bill Arcuri, WCSD Click Once to Begin JEOPARDY! Chemical Equations."— Presentation transcript:

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2 Template by Bill Arcuri, WCSD Click Once to Begin JEOPARDY! Chemical Equations

3 Template by Bill Arcuri, WCSD JEOPARDY! Vocabulary Alter Arrange- ment of Atoms Conser- vation of Mass Energy Changes Life and industry Atoms and Molecules

4 Template by Bill Arcuri, WCSD Daily Double Graphic and Sound Effect! DO NOT DELETE THIS SLIDE! Deleting it may cause the game links to work improperly. This slide is hidden during the game, and WILL not appear. In slide view mode, copy the above (red) graphic (click once to select; right click the border and choose “copy”). Locate the answer slide which you want to be the daily double Right-click and choose “paste”. If necessary, reposition the graphic so that it does not cover the answer text. Daily Double!!!

5 Template by Bill Arcuri, WCSD Vocabulary 100 This reaction most likely will cause a decrease in temperature.

6 Template by Bill Arcuri, WCSD What is an endothermic reaction?

7 Template by Bill Arcuri, WCSD Vocabulary 200 The word for substances always present at the beginning of a chemical reaction.

8 Template by Bill Arcuri, WCSD What are reactants?

9 Template by Bill Arcuri, WCSD Vocabulary 300 The use of photoresist is one step in the process of making this.

10 Template by Bill Arcuri, WCSD What are microchips?

11 Template by Bill Arcuri, WCSD Vocabulary 400 A reaction in which a reactant breaks down into simpler products is called this.

12 Template by Bill Arcuri, WCSD What is a decomposition reaction?

13 Template by Bill Arcuri, WCSD Vocabulary 500 The energy needed to break chemical bonds in reactants and form chemical bonds in products.

14 Template by Bill Arcuri, WCSD What is bond energy?

15 Template by Bill Arcuri, WCSD Alter Arrangement of Atoms 100 These are the reactants in equation #2. Click Here for Chemical Equations

16 Template by Bill Arcuri, WCSD What are C 2 H 2 and O 2 ?

17 Template by Bill Arcuri, WCSD Alter Arrangement of Atoms 200 This happens to matter when a chemical reaction occurs in a closed system.

18 Template by Bill Arcuri, WCSD What is conservation of matter or conservation of mass?

19 Template by Bill Arcuri, WCSD Alter Arrangement of Atoms 300 The chemical formulas for the products in equation 3. Daily Double!!! Click Here for Chemical Equations

20 Template by Bill Arcuri, WCSD What are NO 2 and H 2 O

21 Template by Bill Arcuri, WCSD Alter Arrangement of Atoms 400 The breakdown of water molecules (H 2 O) into hydrogen (H 2 ) and oxygen (O 2 ) molecules is an example of a A. chemical change B. physical change C. combustion reaction D. synthesis reaction

22 Template by Bill Arcuri, WCSD What is A. chemical change?

23 Template by Bill Arcuri, WCSD Alter Arrangement of Atoms 500 The arrow indicates this in the chemical equation 2H 2 + O 2 2H 2 O

24 Template by Bill Arcuri, WCSD What is the direction of the reaction.

25 Template by Bill Arcuri, WCSD Conservation of Mass 100 In a chemical reaction, the mass of the products is always A. slightly more than the mass of the reactants B. twice as much as the mass of the reactants C. equal to the mass of the reactants D. less than the mass of the reactants

26 Template by Bill Arcuri, WCSD What is C. equal to the mass of the reactants ?

27 Template by Bill Arcuri, WCSD Conservation of Mass 200 You can change this to balance a chemical equation.

28 Template by Bill Arcuri, WCSD What is a coefficient?

29 Template by Bill Arcuri, WCSD Conservation of Mass 300 How could you balance this equation? Al + Fe 2 O 3 Al 2 O3 + Fe

30 Template by Bill Arcuri, WCSD 2Al + Fe 2 O 3 Al 2 O 3 + 2Fe

31 Template by Bill Arcuri, WCSD Conservation of Mass 400 The diagram below shows a balance being used to measure a burning candle in a sealed glass ball before and after the burning is complete Before After As the candle burns, the size of the candle decreases, but the reading on the balance does not change. This is demonstrated by this experiment.

32 Template by Bill Arcuri, WCSD What is mass is conserved in a closed system ? Or, The total mass of the system is constant?

33 Template by Bill Arcuri, WCSD Conservation of Mass 500 The law of conservation of mass can be demonstrated by a chemical reaction. Which of the following models of a chemical reaction best represents the law of conservation of mass? A. B. C. D.

34 Template by Bill Arcuri, WCSD What is A. ?

35 Template by Bill Arcuri, WCSD Energy Changes 100 This is given off when an exothermic reaction occurs.

36 Template by Bill Arcuri, WCSD What is energy

37 Template by Bill Arcuri, WCSD Energy Changes 200 In this type of reaction the bond energies of the reactants is more than the bond energy of the products.

38 Template by Bill Arcuri, WCSD What is an endothermic reaction?

39 Template by Bill Arcuri, WCSD Energy Changes 300 Photosynthesis is this type of a reaction. 6CO 2 + 6H energy 6O 2 + C 6 H 12 O 6

40 Template by Bill Arcuri, WCSD What is endothermic?

41 Template by Bill Arcuri, WCSD Energy Changes 400 This reaction will most likely cause an increase in temperature.

42 Template by Bill Arcuri, WCSD What is exothermic?

43 Template by Bill Arcuri, WCSD Energy Changes 500 In an exothermic reaction, the bond energy of the reactants is _______ than the bond energy of the products.

44 Template by Bill Arcuri, WCSD What is less than?

45 Template by Bill Arcuri, WCSD Life and industry 100 A catalytic converter creates this type of reaction.

46 Template by Bill Arcuri, WCSD What is a combustion reaction.

47 Template by Bill Arcuri, WCSD Life and industry 200 This reaction 6CO 2 + 6H 2 O + energy --> C 6 H 12 O 6 + 6O 2 takes place in this Kingdom.

48 Template by Bill Arcuri, WCSD What is the Plant Kingdom? (or Plantae)

49 Template by Bill Arcuri, WCSD Life and industry 300 The opposite of Photosynthesis.

50 Template by Bill Arcuri, WCSD What is cellular respiration?

51 Template by Bill Arcuri, WCSD Life and industry 400 The common names of the reactants and products of photosynthesis. Daily Double!!!

52 Template by Bill Arcuri, WCSD What is Carbon dioxide, water and sunlight react to form sugar and oxygen?

53 Template by Bill Arcuri, WCSD Life and industry 500 The catalyst in catalytic converters.

54 Template by Bill Arcuri, WCSD What are metals bonded to a ceramic structure (honeycomb)?

55 Template by Bill Arcuri, WCSD Atoms and Molecules 100 The name for a substance of all the same kind of atom.

56 Template by Bill Arcuri, WCSD What is an element?

57 Template by Bill Arcuri, WCSD Atoms and Molecules 200 Which of the following substances can be separated into several elements? A. nitrogen B. zinc C. air D. aluminum

58 Template by Bill Arcuri, WCSD What is air?

59 Template by Bill Arcuri, WCSD Atoms and Molecules 300 What is the smallest unit of an element that still has the properties of that element?

60 Template by Bill Arcuri, WCSD What is an atom?

61 Template by Bill Arcuri, WCSD Atoms and Molecules 400 Two or more atoms covalently bonded are called this.

62 Template by Bill Arcuri, WCSD What is a Molecule?

63 Template by Bill Arcuri, WCSD Atoms and Molecules 500 The chemical formula for glucose.

64 Template by Bill Arcuri, WCSD What is C 6 H 12 O 6 ?

65 Template by Bill Arcuri, WCSD Final Jeopardy Describe how concentration and temperature are related to the rate of a chemical reaction. Then identify and describe one more factor that can affect reaction rate.

66 Template by Bill Arcuri, WCSD Click Once to Begin What is Concentration describes the number of particles in a given volume. As the concentration of the reactants increases, there are more particles to collide and react with one another. This can increase the reaction rate. Temperature is related to the rate of a reaction. Temperature is also related to energy. When you add energy to a reaction, it increases particle motion. This increase in motion is measured by an increase in temperature. Reactions at higher temperatures have reactant particles that are moving faster. This results in more reactant collisions and a faster reaction rate. Surface area of the reactants can also affect the reaction rate. Increased surface area means that more of the surface of the reactant is exposed. As surface area increases, the rate of the reaction increases as well.

67 Template by Bill Arcuri, WCSD Back

68 Template by Bill Arcuri, WCSD Back


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