1) the symbol for a reversible reaction is a) b) c) d) 2) an exothermic reaction a) absorbs energy b) releases energy c) stops energy transfer d) causes a loss of mass 3) What temperature change would you see in an endothermic reaction a) from 20 to 30 degrees b) no change at all c) from 35 to 25 degrees d) boiling 4) what are the products when ammonium chloride is thermally decomposed a) ammonia and nitrogen b) ammonium and chloride c) ammonia and hydrogen chloride d) nothing 5) which of the following is not a reversible reaction a) thermal decomposition of ammonium chloride b) the hydration of copper sulphate c) the formation of ammonia and hydrogen d) reacting magnesium metal and nitric acid  6) Hydrated crystals of copper sulphate have which colour? a) blue b) red c) white d) green 7) When heated, hydrated copper sulphate crystals (blue) turn to a white powder. When water is added the powder turns blue again. The last change described is ..   a) exothermic b) endothermic c) isothermic

Reversible reactions

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