UK GCSE · Chemistry
Rates Equilibria and The Atmosphere
11 practice questions, each with the answer and an explanation.
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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.
All 11 questions
- Which change would increase the rate of a reaction between marble chips and acid?
- Why does increasing the temperature increase the rate of reaction?
- What is a catalyst?
- In an exothermic reaction, what happens to the temperature of the surroundings?
- In the reaction N2 + 3H2 <-> 2NH3, what is the effect of increasing the pressure?
- Which gas makes up about 78 percent of the air?
- How can the percentage of oxygen in the air be found using copper?
- Which is a greenhouse gas?
- What is the test for carbon dioxide?
- Why is recycling aluminium better than extracting it from its ore?
- In the Haber process, N2 + 3H2 forms 2NH3 (reversible). What is the effect of increasing the pressure on the position of equilibrium?
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