Characteristics of Chemical Reactions
Chemistry ⇒ Chemical Reactions and Equations
Characteristics of Chemical Reactions starts at 7 and continues till grade 12.
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See sample questions for grade 9
Describe the role of energy in a chemical reaction.
Describe what is meant by 'irreversibility' as a characteristic of some chemical reactions.
Describe what is meant by the evolution of gas as a characteristic of a chemical reaction.
Describe what is meant by the term 'chemical change'.
Explain why dissolving salt in water is not considered a chemical reaction.
Explain why the burning of a candle is considered a chemical reaction.
Explain why the rusting of iron is considered a chemical reaction.
Explain why the souring of milk is considered a chemical reaction.
State one way to distinguish between a physical change and a chemical change.
The burning of magnesium ribbon in air produces a bright white light and a white powder. Which characteristics of chemical reactions are shown in this example?
When iron reacts with sulfur to form iron sulfide, what characteristic of chemical reaction is observed?
When silver nitrate is added to sodium chloride solution, a white solid forms. What does this indicate?
When two solutions are mixed and a solid forms, what is this solid called?
When vinegar is added to baking soda, bubbles are observed. What does this indicate?
