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5
×
When we increase the temperature of a reaction in equilibrium, what direction will the reaction shift towards?
The endothermic direction
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boom
Lose 50 points!
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fairy
Take points!
5
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15
20
25
×
shark
Other team loses 10 points!
Okay!
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baam
Lose 20 points!
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5
×
Use the green tangent line to calculate the rate of this reaction
60/5 = 12 cm3/s
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5
×
What does this show?
Reversible reaction
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5
×
Give an example of the units for a rate of reaction?
g/s or cm3/s
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boom
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magnet
Take 25 points!
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gift
Win 25 points!
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baam
Lose 25 points!
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5
×
What are the two methods for measuring the volume of gas produced in a reaction?
Gas syringe or measuring cylinder filled with water
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5
×
What does it show when the line of the graphs has levelled off (gone flat)?
That the reaction has stopped
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5
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Explain how increasing the concentration of a reactant will change the rate of the reaction
There are more particles per unit volume, so more frequent collisions and a faster rate of reaction
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banana
Go to last place!
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seesaw
Swap points!
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rocket
Go to first place!
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thief
Give points!
5
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15
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25
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baam
Lose 15 points!
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fairy
Take points!
5
10
15
20
25
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shark
Other team loses 20 points!
Okay!
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lifesaver
Give 20 points!
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5
×
For both reactions, A and B, the rate of reaction slows down as time progresses. Why does this happen?
The reactants are being used up in the collisions, so their concentration decreases. This means less frequent collisions until one reactant is used up
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5
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If a reaction is equilibrium is exothermic in the forward direction, what does that mean for the backward reaction?
It will be endothermic
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5
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What is the name given to the energy that particles must have for a collision to be successful?
Activation energy
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5
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What is the name of the piece of equipment labelled B?
Conical flask
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5
×
Which line, A or B, shows the fastest reaction? Explain your choice.
A because the line starts steeper or there is more gas produced in a shorter time
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