Rates of Reaction
Presentation
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Biology
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8th Grade
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Practice Problem
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Easy
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10 Slides • 4 Questions
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Rates of Reaction
Chemistry for Grade 8
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Open Ended
What is Rate of Reaction?
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Measuring the Rates of Reaction
Working out how much of one of the products has been made in a given time, or how much of a reactant is used up in a given time.
EXAMPLE: When you add a piece of calcium carbonate to hydrochloric acid, carbon dioxide gas is given off.
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Measuring the rate of reaction by finding the loss in mass
The rate changes as the reaction proceeds
Example: Reaction between calcium carbonate and hydrochloric acid
Lots of bubbles of carbon dioxide gas are given off at the start of the reaction
As the reaction continues, fewer and fewer bubbles are produced
This shows that the reaction has slowed down
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Open Ended
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The word equation for the reaction of calcium carbonate with hydrochloric acid
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The table shows results obtaining using this apparatus
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The graph of the results is plotted
it is easier to see the pattern that they make.
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Anomalous Result
If the results doesn't fit (correspond with) the pattern.
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Open Ended
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Multiple Select
Rates of Reaction
Chemistry for Grade 8
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