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Which of the following is the best pair of reagents used for preparing copper(II) sulphate crystals?
Which salt could be obtained as the insoluble product of a reaction between a dilute acid and an aqueous salt?
Which salts are best prepared by a titration method?
Which of the following can be used with hydrochloric acid to prepare zinc chloride?
Barium sulphate is insoluble in water. Which method could be used to prepare a pure sample of the salt from dilute sulphuric acid?
Which of the following salts are suitable to be prepared by using the double decomposition method?
An acid X reacts with copper (II) oxide forms a nitrate salt. What will be the salt formed if acid X reacts with zinc carbonate?
Which of the equations below represents the reaction that produces of lead (II) iodide salt?
Which of the following method is the most suitable to be used to prepare silver(I) chloride in a laboratory?
A copper(II) sulphate crystal is placed into a concentrated copper (II) sulphate solution and is left for one week. Predict what can be observed at the end of the experiment.
A salt is made by adding an excess insoluble metal carbonate to an acid. How can the excess metal carbonate be removed in solution produced?