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frame : picture :: water :
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25% 25%25%25%1. island2. peninsula3. lake4. reservoir
Response Grid
Which of the following is not a sign that a chemical reaction has occurred?
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15
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1. Heat2. Light3. Odor given off4. Gas produced5. Precipitate formed6. Color change
How do you know for sure that a chemical reaction has occurred?
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15
Response Grid
1. More than 1 sign is evident
2. More than 2 signs are evident
3. The properties change
4. A new substance forms
Which is not true during a chemical reaction?
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15
Response Grid
1. Energy is created.2. Mass is conserved.3. Atoms are
rearranged.4. Electrons are moved
around.5. Activation energy is
absorbed.
Energy is released when bonds _________ but absorbed when bonds _________.
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15
Response Grid
1. Form; break2. Break; form
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
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
Which energy diagram represented an endothermic reaction?
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1. A2. B3. Both4. Neither
What does the line on the graph in the previous slide represent?
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15
Response Grid
1. The reactants2. The products3. The activation
energy4. The conservation of
mass5. The energy given off
Section “a” of the graph represents bonds ________ while section “b” represents bonds ________.
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15
Response Grid
1. Forming; breaking2. Breaking; forming
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
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
Which is not a factor that can affect the rate of a reaction?
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15
Response Grid
1. Temperature2. Concentration3. Surface area4. Catalyst5. Activation energy
Which of the following is the general equation for single displacement reactions?
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20
Response Grid
1. A + X AX2. AX A + X3. A + BX AX + B4. AX + BY AY + BX5. AX + O2 AO + XO
Which of the following is the general equation for double displacement reactions?
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15
Response Grid
1. A + X AX2. AX A + X3. A + BX AX + B4. AX + BY AY + BX5. AX + O2 AO + XO
Which of the following is the general equation for decomposition reactions?
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15
Response Grid
1. A + X AX2. AX A + X3. A + BX AX + B4. AX + BY AY + BX5. AX + O2 AO + XO
Which of the following is the general equation for combustion reactions?
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15
Response Grid
1. A + X AX2. AX A + X3. A + BX AX + B4. AX + BY AY + BX5. AX + O2 AO + XO
What are the products of a combustion reaction involving a hydrocarbon?
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15
Response Grid
1. Oxygen and water2. An acid and a base3. Carbon dioxide and
water vapor4. A precipitate
Why must a chemical equation be balanced?
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15
Response Grid
1. To even everything out
2. So you know how much of each substance is needed
3. To satisfy conservation of mass
Which numbers can you adjust to balance a chemical equation?
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Response Grid
1. Subscripts2. Coefficients
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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
Which of the following is not one of the diatomic elements?
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1. H2. C3. N4. O5. F6. Cl7. Br8. I
What symbol do you use if a reaction is heated?
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Response Grid
1. (s)2. (aq)3. Δ4. ↑5. ↓
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
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
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
How do you determine if a precipitate will form in a reaction?
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15
Response Grid
1. Use the activity series
2. Use the periodic table
3. Use the solubility rules
4. Guess
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