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WorksheetsMeasuring rate - Changes in rate
Total questions: 10
Worksheet time: 5mins
What is the statement below that correct about rate of reaction?
amount of product that has been used up in a given time
amount of product that has been made in a given time
amount of reactant that has been used up in a given time
amount of remaining reactant in a given time
Mr. Awal is reacting magnesium ribbon and hydrochloric acid. What is the gas produced?
hydrogen
oxygen
nitrogen
carbon dioxide
This apparatus can be used to measure the rate of reaction that producing ...
solid substance
liquid
gas
aqueous solution
When you plot a graph, sometimes you find one result that does not fit the pattern. This is called ... result.
annotation
anomalous
anatomy
anthropology
Calcium carbonate (marble chips) is reacted with hydrochloric acid on the balance. If the cotton wool is removed, what is the name of gas that escaped from the glass?
hydrogen
oxygen
nitrogen
carbon dioxide
At what time the reaction is stopped?
1 minute
2 minutes
5 minutes
7 minutes
What is the rate of reaction at 3 minutes?
10 gram/minute
20 gram/minute
30 gram/minute
40 gram/minute
At the beginning of reaction, the curve of graph is steep. It means that the reaction is ...
fast
slow
stopped
When the curve of graph is flat, so the reaction is ...
fast
slow
stopped
For a chemical reaction to take place (happen), the particles of reactants have to collide each other with ... energy
less
enough
a lot of
