Answer available
Class 9 · Chemistry · Chemical Changes and Reactions
Name four types of chemical reaction and give one equation for each.
3 marksMediumStructured
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7 questions
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Class 9 · Chemistry · Chemical Changes and Reactions
What is a catalyst? Give one example with the reaction it catalyses.
3 marksMediumShort answer
- Answer available
Class 9 · Chemistry · Chemical Changes and Reactions
Distinguish between an exothermic and an endothermic reaction, with one example of each.
3 marksMediumShort answer
- Answer available
Class 9 · Chemistry · Chemical Changes and Reactions
What is a reversible reaction? Give one example and state how it is written.
3 marksMediumShort answer
- Answer available
Class 9 · Chemistry · Chemical Changes and Reactions
State three differences between a physical and a chemical change.
2 marksEasyShort answer
- Answer available
Class 9 · Chemistry · Chemical Changes and Reactions
Name four conditions that may be necessary to bring about a chemical change.
3 marksMediumShort answer
- Answer available
Class 9 · Chemistry · Chemical Changes and Reactions
State two differences between a physical change and a chemical change.
2 marksEasyShort answer