Acids, Bases and Salt

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Which oxide reacts with an alkali to form a salt, but does not react with acid to form a salt?

Which element forms an oxide that reacts with water to give an acidic solution?

Which of the following describes a step in the preparation of insoluble barium sulfate from aqueous barium chloride and dilute sulfuric acid?

What is the best method of making copper (II) sulfate?

A man suffering from an excess if acid in his stomach has no indigestion tablets. Which substance could he take to lower this acidity?

Copper (II) chloride crystals can be prepared by reacting dilute hydrochloric acid with several substances. Which of the following substances cannot be used?

Which one of the following salts can be prepared by reacting an acid with an alkali using titration?

Which compound can be prepared by reacting a metal with a dilute acid?