Jeopardy

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Jeopardy
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Q 100
Q 100
Q 100
Q 100
Q 100
Q 200
Q 200
Q 200
Q 200
Q 200
Q 300
Q 300
Q 300
Q 300
Q 300
Q 400
Q 400
Q 400
Q 400
Q 400
Q 500
Q 500
Q 500
Q 500
Q 500
Final Jeopardy
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100 Question from H1
List three signs of a chemical change
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100 Answer from H1
Color change, production of gas, Heat, light,
sound
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200 Question from H1
A substance that undergoes a change In a chemical
reaction is a ________.
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200 Answer from H1
A substance that undergoes a change In a chemical
reaction is a_reactant____.
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300 Question from H1
In a chemical reaction, ________ are rearranged.
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300 Answer from H1
In a chemical reaction, ___atoms__ are rearranged.
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400 Question from H1
In an exothermic reaction, energy is
transferred From _________ to ___________.
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400 Answer from H1
In an exothermic reaction, energy is
transferred From __reactants_ to
__surroundings___.
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500 Question from H1
In an endothermic reaction, energy Is transferred
from _______ to ______________.
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500 Answer from H1
In an endothermic reaction, energy Is transferred
from __surroundings_ to __reactants__.
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100 Question from H2
Energy that is present within atoms And molecules
is called __________ ___________.
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100 Answer from H2
Energy that is present within atoms And molecules
is called chemical energy.
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200 Question from H2
What kind of reaction occurs when potassium is
Placed in water?
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200 Answer from H2
Single-displacement reaction
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300 Question from H2
Digestion is an example of which reaction type?
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300 Answer from H2
A decomposition reaction
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400 Question from H2
Na Cl ? NaCl is an example of Which reaction
type?
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400 Answer from H2
A synthesis reaction
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500 Question from H2
Electrolysis of water is an example of Which
type of reaction?
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500 Answer from H2
A decomposition reaction 2H20 ? 2H2 O2
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100 Question from H3
Fragments of molecules that have at Least one
electron available for Bonding are called
__________.
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100 Answer from H3
Radicals
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200 Question from H3
In a redox reaction, the substance that Accepts
electrons is said to be ______ and The substance
that gives up electrons Is said to be _________.
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200 Answer from H3
Reduced gain electrons And Oxidized lose
electrons (OIL RIG)
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300 Question from H3
A chemical equation is balanced by changing Or
adding _____________.
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300 Answer from H3
Coefficients
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400 Question from H3
In the reaction, 2H2O ? 2H2 O2, If you start
with 2 mol of water, how Many moles of hydrogen
gas are Produced?
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400 Answer from H3
Two
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500 Question from H3
If you start with 5 mol of O2 in the Reaction,
2Mg O2 ? 2MgO, How many moles of Mg will you
need?
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500 Answer from H3
Ten mol
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100 Question from H4
In a balanced equation, the total mass Of the
products always _______ the Total mass of the
reactants.
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100 Answer from H4
Equals
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200 Question from H4

• All of the following factors may speed
• Up a chemical reaction except
• Smaller surface area
• Higher temperature
• Higher pressure
• Presence of a catalyst

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200 Answer from H4
A. smaller surface area will slow a reaction.
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300 Question from H4
A special catalyst that works to speed up A
specific biochemical reaction is known as an
______.
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300 Answer from H4
Enzyme
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400 Question from H4
When a chemical reaction and its reverse
reaction Are occurring at the same time and at
the same rate, the reaction has reached
____________.
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400 Answer from H4
Equilibrium
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500 Question from H4
Increasing the concentration of one Substance in
an equilibrium reaction Favors the reaction that
produces ______________ of that substance.
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500 Answer from H4
Less
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100 Question from H5

• List the general formula for
• Synthesis reaction
• Decomposition reaction

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100 Answer from H5
a. A B ? AB b. AB ? A B
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200 Question from H5
A catalyst that slows a reaction is called An
___________.
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200 Answer from H5
Inhibitor
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300 Question from H5
In a combustion reaction, __________ Is used to
make reactant burn.
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300 Answer from H5
Oxygen
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400 Question from H5
Balance the following equations H2 Cl2 ? __
HCl ___ KI Br2 ? ___KBr I2
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400 Answer from H5
H2 Cl2 ? _2_ HCl _2__ KI Br2 ? __2_KBr I2
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500 Question from H5
When a reaction is at equilibrium, Increasing
the pressure favors the Reaction that
produces__________. Likewise, When a reaction is
at equilibrium, increasing the temperature favors
the reaction that ______________.
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500 Answer from H5
When a reaction is at equilibrium, Increasing
the pressure favors the Reaction that
produces__less gas________. Likewise, When a
reaction is at equilibrium, increasing the
temperature favors the reaction that __absorbs
energy has heat_____.
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Final Jeopardy
Explain how the Haber process for producing
ammonia is a Good example of Le Chateliers
principle.
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Final Jeopardy Answer
Le Chateliers principle states if a change is
made to a system in equilibrium, the equilibrium
shifts to oppose the change until a new
equilibrium is reached. N2 3H2 ? 2NH3
heat For example, in the Haber process, a rise in
temperature favors the reactions that absorbs
energy and makes less ammonia. If you have less
nitrogen gas, and reduce the pressure, Le
Châteliers principle predicts that less ammonia
will be produced. So to produce the most
ammonia, you should have less heat and more
pressure.