3 Questions
What is the role of a catalyst in a chemical reaction?
Remains unchanged at the end of the reaction
In a chemical equation, what does the coefficient represent?
Number of atoms of each element
Which of the following is an example of a chemical reaction?
Burning of wood
Study Notes
Chemical Reactions
- A catalyst is a substance that speeds up a chemical reaction without being consumed or altered in the process.
- In a chemical equation, the coefficient represents the number of molecules or atoms of a reactant or product involved in the reaction.
Examples of Chemical Reactions
- A burning match, rusting of iron, and baking of bread are all examples of chemical reactions.
Test your knowledge of chemical reactions with this quiz designed for students in grade 8. Explore examples of chemical reactions, the role of catalysts, and the significance of coefficients in chemical equations.
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