Question

What happens when the following substances are mixed with water? Are the changes reversible or irreversible? Give reasons for your answers. d) Look at the solutions X and Y. (i) Write which solution is saturated and which solution is unsaturated. (ii) How will the solubility in solution Y change if the solution is heated? 4. Answer the following questions in 60–80 words: (8 marks) a) Explain how filtration and evaporation can separate solid–liquid mixtures. b) Analyse the given scenarios and answer the questions. (i) Sonam was trying to separate small stones from raw rice. While doing so, she spilled flour into it. Suggest suitable method(s) of separation and give reasons for your suggestion. (ii) John was experimenting with muddy seawater to obtain salt. Which method(s) can he use to obtain salt from it? Justify your answer. No salt seen in solution Salt crystals seen in solution Solution X Solution Y Mix this Substance with Water What Happens? Reversible/ Irreversible Reason Substance A was mixed with water The mixture hardens immediately a) c) Substance B was mixed with water B dissolves to form a solution b) d)​

Answer 1

Answer:

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Explanation:

mad