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acetate add a little alcohol allow ammonia ammonium chloride ammonium hydroxide apparatus ascertain beaker boil bottle Bunsen burn burner calcium calcium acetate charcoal combustion Compare compound concentrated sulphuric acid cool copper crucible crystals cubic centimeters cubic meter cylinder decimeter delivery tube dilute hydrochloric acid dioxide Dissolve drops of potassium dry test tube dryness evaporating dish Examine EXERCISE experiment Fill filtrate flame flask formed funnel gases gently glass tube gram hydrochloric acid hydrogen ignite inch Instructor invert iodine iron laboratory limewater liquid liter litmus paper magnesium Manual of Chemistry measure mercury metal mouth nitrate nitric acid nitrogen obtained odor oxide oxygen pass pinchcock porcelain potassium chloride powdered precipitate pressure reaction result shake small piece sodium carbonate sodium chloride soluble starch stopper Storer substance sulphate sulphuric acid takes place test tube tube and add vessel volume warm wire Write equation Write the equation zinc