topic 6

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  • Created by: bertie321
  • Created on: 17-02-22 17:10
what is rate of reaction
it is how fast the reaction happens
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rate of reaction=
amount of reactant used or amount of product formed/time
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what happens in a precipitation reaction
the two solutions react together to make the container cloudy
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what happens in the change in mass
as a gas is released it will make the solution lighter so you can see how much it reacts through how much is lost
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what happens when volume is given off as a gas
this will involve you measuring the amount of bubbles that is being given of through the reaction
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what happens when you have finer particles of solid
it will mean the rate is higher as there is a larger surface area
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what happens when you have a higher concentration
it will mean a higher rate of reaction
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how is the reaction rate affected by temperature
if you increase the temperature the rate will increase up to a certain point where the rate of reaction will decrease
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what gradient will a faster rate have
a steeper gradient
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what to particles have to do to react
they have to collide together
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what happens if there are more collisions of particles
faster rate of reaction
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what does a catalysts do
they increase the rate of reaction
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what do enzymes do
they control the cell reactions
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what is a exothermic reaction
it is a reaction that gives out energy to the surroundings
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what is a endothermic reaction
it is a reaction that takes energy from the surroundings
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how do you measure if a reaction is exothermic or endothermic
you can measure the temperature changes
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dissolving ammonium chloride into water
endothermic
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dissolving calcium chloride into water
exothermic
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what must be supplied to break bonds
energy
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overall energy change=
energy required to break the bonds - the energy release by forming the bonds
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Other cards in this set

Card 2

Front

rate of reaction=

Back

amount of reactant used or amount of product formed/time

Card 3

Front

what happens in a precipitation reaction

Back

Preview of the front of card 3

Card 4

Front

what happens in the change in mass

Back

Preview of the front of card 4

Card 5

Front

what happens when volume is given off as a gas

Back

Preview of the front of card 5
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