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 11
A student mixes two clear solutions and observes the formation of a yellow solid. What characteristic of chemical reaction is being observed?
Describe two ways in which energy change can be observed during a chemical reaction.
Describe what is meant by the term 'precipitate' in the context of chemical reactions.
Explain why a change in color is considered a characteristic of a chemical reaction.
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 formation of bubbles in a reaction mixture is considered evidence of a chemical reaction.
Is the rusting of iron a physical or chemical change?
State any two characteristics of a chemical reaction.
State whether the following is a chemical or physical change: Cooking an egg.
When dilute hydrochloric acid is added to zinc granules, bubbles are observed. What does this indicate?
When silver nitrate is added to sodium chloride solution, a white precipitate is formed. Which characteristic of chemical reaction does this illustrate?
