Chemical Reactions Unit 1: Chemistry Basics 1.32 Chemical Reactions Textbook ch 3.2.
CH 8: Review Game Chemical Reactions
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Transcript of CH 8: Review Game Chemical Reactions
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CH 8: Review GameChemical Reactions
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frame : picture :: water :
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25% 25%25%25%1. island2. peninsula3. lake4. reservoir
Response Grid
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Which of the following is not a sign that a chemical reaction has occurred?
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Response Grid
1. Heat2. Light3. Odor given off4. Gas produced5. Precipitate formed6. Color change
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How do you know for sure that a chemical reaction has occurred?
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1. More than 1 sign is evident
2. More than 2 signs are evident
3. The properties change
4. A new substance forms
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Which is not true during a chemical reaction?
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Response Grid
1. Energy is created.2. Mass is conserved.3. Atoms are
rearranged.4. Electrons are moved
around.5. Activation energy is
absorbed.
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Energy is released when bonds _________ but absorbed when bonds _________.
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Response Grid
1. Form; break2. Break; form
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Participant Scores0 Participant 1 0 Participant 110 Participant 2 0 Participant 120 Participant 3 0 Participant 130 Participant 4 0 Participant 140 Participant 5 0 Participant 150 Participant 6 0 Participant 160 Participant 7 0 Participant 170 Participant 8 0 Participant 180 Participant 9 0 Participant 190 Participant 10 0 Participant 20
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Energy Diagram for Reactions
A B
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What percentage of your current points would you like to wager on the next
question?1. 0%2. 25%3. 50%4. 75%5. 100%
Response Grid
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Which energy diagram represented an endothermic reaction?
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1. A2. B3. Both4. Neither
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Energy Diagram for a Reaction
A
?
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What does the line on the graph in the previous slide represent?
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Response Grid
1. The reactants2. The products3. The activation
energy4. The conservation of
mass5. The energy given off
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Energy Diagram for Reactions
B
ab
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Section “a” of the graph represents bonds ________ while section “b” represents bonds ________.
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Response Grid
1. Forming; breaking2. Breaking; forming
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Energy Diagram for Reactions
A B
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Participant Scores0 Participant 1 0 Participant 110 Participant 2 0 Participant 120 Participant 3 0 Participant 130 Participant 4 0 Participant 140 Participant 5 0 Participant 150 Participant 6 0 Participant 160 Participant 7 0 Participant 170 Participant 8 0 Participant 180 Participant 9 0 Participant 190 Participant 10 0 Participant 20
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What percentage of your current points would you like to wager on the next
question?1. 0%2. 25%3. 50%4. 75%5. 100%
Response Grid
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Which is not a factor that can affect the rate of a reaction?
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Response Grid
1. Temperature2. Concentration3. Surface area4. Catalyst5. Activation energy
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Which of the following is the general equation for single displacement reactions?
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1. A + X AX2. AX A + X3. A + BX AX + B4. AX + BY AY + BX5. AX + O2 AO + XO
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Which of the following is the general equation for double displacement reactions?
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Response Grid
1. A + X AX2. AX A + X3. A + BX AX + B4. AX + BY AY + BX5. AX + O2 AO + XO
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Which of the following is the general equation for decomposition reactions?
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Response Grid
1. A + X AX2. AX A + X3. A + BX AX + B4. AX + BY AY + BX5. AX + O2 AO + XO
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Which of the following is the general equation for combustion reactions?
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Response Grid
1. A + X AX2. AX A + X3. A + BX AX + B4. AX + BY AY + BX5. AX + O2 AO + XO
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What are the products of a combustion reaction involving a hydrocarbon?
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Response Grid
1. Oxygen and water2. An acid and a base3. Carbon dioxide and
water vapor4. A precipitate
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Why must a chemical equation be balanced?
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1. To even everything out
2. So you know how much of each substance is needed
3. To satisfy conservation of mass
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Which numbers can you adjust to balance a chemical equation?
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Response Grid
1. Subscripts2. Coefficients
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Participant Scores0 Participant 1 0 Participant 110 Participant 2 0 Participant 120 Participant 3 0 Participant 130 Participant 4 0 Participant 140 Participant 5 0 Participant 150 Participant 6 0 Participant 160 Participant 7 0 Participant 170 Participant 8 0 Participant 180 Participant 9 0 Participant 190 Participant 10 0 Participant 20
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What percentage of your current points would you like to wager on the next
question?1. 0%2. 25%3. 50%4. 75%5. 100%
Response Grid
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Which of the following is not one of the diatomic elements?
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1. H2. C3. N4. O5. F6. Cl7. Br8. I
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What symbol do you use if a reaction is heated?
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1. (s)2. (aq)3. Δ4. ↑5. ↓
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When do you use the activity series?
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Response Grid
1. For double displacement reactions
2. For single displacement reactions
3. For exothermic reactions
4. For all reacations
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Participant Scores0 Participant 1 0 Participant 110 Participant 2 0 Participant 120 Participant 3 0 Participant 130 Participant 4 0 Participant 140 Participant 5 0 Participant 150 Participant 6 0 Participant 160 Participant 7 0 Participant 170 Participant 8 0 Participant 180 Participant 9 0 Participant 190 Participant 10 0 Participant 20
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What percentage of your current points would you like to wager on the next
question?1. 0%2. 25%3. 50%4. 75%5. 100%
Response Grid
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How do you determine if a precipitate will form in a reaction?
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Response Grid
1. Use the activity series
2. Use the periodic table
3. Use the solubility rules
4. Guess
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Participant Scores0 Participant 1 0 Participant 110 Participant 2 0 Participant 120 Participant 3 0 Participant 130 Participant 4 0 Participant 140 Participant 5 0 Participant 150 Participant 6 0 Participant 160 Participant 7 0 Participant 170 Participant 8 0 Participant 180 Participant 9 0 Participant 190 Participant 10 0 Participant 20