The tests below were carried out on a solution containing ions of the metal X. test observation add sodium chloride solution no change add sodium sulfate solution no change add sodium hydroxide solution a precipitate was formed, soluble in excess of the hydroxide What is metal X?

Titration of an acid against a base is a method often used in the preparation of salts. Which properties of the acid,…

Which compound will not produce ammonia when heated with ammonium sulfate?

Copper(II) sulfate crystals are separated from sand using the four processes listed below. In which order are these p…

An atom of which element gains three electrons when it forms an ion?

A metal X forms oxides with the formulae XO and X2O3. Where is X in the Periodic Table?

Which pair of metals are not oxidised when added to water? 1. calcium 2. copper 3. potassium 4. silver