Give an example of a chemical reaction for each of the following situation
1 a change in colour is observed
2 a gas is evolved
3 sound is produced
Answers
Answered by
65
Answer:
1 - Reaction between baking soda and vinegar
2 - Acid Base test using Indicator, Starch Test, Reaction between Copper, Water and Carbon Dioxide
3 - Acid Base reaction
Answered by
1
Answer:
(i) Evolution of gas--Reaction between zinc and dilute sulfuric acid
(ii) Change in color-- Reaction between citric acid and purple-colored potassium permanganate solution given colorless solution.
(iii) Formation of precipitate-Reaction between potassium iodide and lead nitrate forms a yellow precipitate of lead iodide.
(iv) change in temperature: Reaction between zinc granules and dilute hydrochloric acid.
(v) change in the state: Combustion of the candle was is characterized by a change in state from solid to liquid and gas.
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