PDF chapter test TRY NOW
Answer the following questions:
1. Reaction of compound X with aluminium is used to join railway tracks or cracked machine parts.
a. Identify the compound.
b. Name the reaction.
c. Write a balanced chemical equation for the reaction.
a. Identify the compound.
b. Name the reaction.
c. Write a balanced chemical equation for the reaction.
2. Why are decomposition reactions called the opposite of combination reactions? Give chemical equations for these reactions.
3. Using a suitable chemical equation justify that some chemical reactions are determined by
a. Change in colour.
b. Change in temperature.
a. Change in colour.
b. Change in temperature.
Important!
Check the answers with the help of your teacher.
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