QA

Match it! Select the correct answer from the pull down...Good luck!

Which gas is produced when an alkali is warmed with ammonium sulfate?

Which compound in solution produces a precipitate with aqueous ammonia that does not dissolve when an excess of ammonia is added?

A pale green solution X gives a green precipitate with excess aqueous sodium hydroxide. An alkaline gas is only given off when the mixture is warmed wth powdered aluminium. Which i

Solution X turns acidified potassium dichromate (VI) from orange to green. What must solution X contain?

Compound X reacts with some metals to liberate hydrogen and is used to make fertilisers. It gives a white precipitate when added to aqueous barium nitrate. What is X?

An excess of dilute sulfuric acid reacts with both aqueous barium hydroxide and aqueous barium chloride. In what way are the two reactions the same?

Which gas turns acidified potassium dichromate (VI) from orange to green?

An excess of sodium hydroxide is added to an aqueous solution of salt X and boiled. Ammonia gas was only given off after aluminium foil is added to the hot solution. What could X b