GCSE - Gcse Chemistry - Rates Of Reaction 1 Solution

Q.1.

A catalyst is...

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a substance that slows down a chemical reaction, and is used up in the reaction
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a substance that speeds up a chemical reaction, and is used up in the reaction
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a substance that speeds up a chemical reaction, but is not used up in the reaction
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a substance that slows down a chemical reaction, but is not used up in the reaction

Q.2.

Which piece of laboratory equipment would be useful for measuring the volume of gas given off?

Q.3.

If 80 cm of gas was given off in a reaction in 20 seconds, what was the average rate of reaction?

Q.4.

Which of the following methods is NOT a valid way to measure the rate of a chemical reaction?

Q.5.

In order to accelerate the rate of a chemical reaction, there are two things which we can do. Pick the correct combination.

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Decrease the chances of particle collision Increase the energy the particles collide with
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Increase the chances of particle collision Increase the energy the particles collide with
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Increase the chances of particle collision Decrease the energy the particles collide with
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Decrease the chances of particle collision Decrease the energy the particles collide with

Q.6.

Which of the following is NOT a factor that affects the rate of a chemical reaction?

Q.7.

One method of increasing the chances of particles colliding during a reaction between gases is to...

Q.8.

Chemical reactions can only occur when...

Q.9.

One method of increasing the energy the particles react with is to...

Q.10.

The smallest amount of energy required by particles to react is called...