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Chemistry

Chemistry · Quick practice · answer shown after each question

Chemical kinetics

Question 1 of 10

Question 1 of 10

If doubling [A] quadruples the rate, the reaction is

Question 2 of 10

Question 2 of 10

A common unit for the rate of a reaction is

Question 3 of 10

Question 3 of 10

Raising the temperature increases the rate of reaction mainly because

Question 4 of 10

Question 4 of 10

A catalyst speeds up a reaction by

Question 5 of 10

Question 5 of 10

Powdered chalk reacts faster with acid than lumps of chalk because the powder has

Question 6 of 10

Question 6 of 10

Powdered calcium carbonate reacts faster with acid than lumps because it has

Question 7 of 10

Question 7 of 10

The half-life of a first-order reaction

Question 8 of 10

Question 8 of 10

The minimum energy colliding particles need to react is the

Question 9 of 10

Question 9 of 10

The rate of a reaction can be measured by recording the

Question 10 of 10

Question 10 of 10

For a zero-order reaction, the rate

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.