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answering part questions won't help me

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QUESTION FIVE: (a) Distinguish briefly between Solid, liquid and gas {6} (b) State the difference between Evaporation, Condensation and Sublimation. Motivate your answer with equation where possible. {6} (c) Briefly discuss what you understand by the terms: (i) Colloids and (ii) Suspension {4} (d) Discuss ANY TWO chemical properties of engineering materials {4}