Short questions: 1) Why true solutions are homogeneous in nature? 2) What happens when a crystal of solute is introduced into a saturated solution of the solute? 3) Explain, how can you increase the solubility of a gas in liquid? 4) What is effect of temperature on solubility of a solid in liquid? 5) Mention any two applications of solubility curves. 6) Mention any two conditions required for a chemical change. 7) Name the products formed when calcium bicarbonate is heated. 8) Why are decomposition reactions called the opposite of combination reactions? 9) Name two salts that are used in photography. 10) Name the reaction, in which two compounds exchange their ions to form two new compounds. 11) Name insoluble substance formed in a reaction between barium chloride and sodium sulphate. 12) Give one reaction which is accompanied by evolution of heat. 13) “respiration is an exothermic process”. Justify your statement. 14) What is meant by the term photochemical reaction? 15) Define the term electrochemical reaction. Give one example. URGENT!
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true sol are homogeneous because it s particles are very small and get mixes with the solution
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