Can someone please help me with the following?
Identify the following substances and explain any chemical changes involved:
A) a is a very good conductor of heat and electricity. It dissolves separately in hot aq sodium hydroxide and in a strong solution of h2so4 with the liberation of a colorless explosive gas. It reacts with chlorine gas to form a vapour which condenses into a white product. The relative molecular mass of the vapour changes with temperature.
B) B is a white powder which, on heating in the presence of dry halogen halide gas, produces a white solid c. A cream coloured precipitate is formed when c is dissolved in water and treated with a mixture of dilute nitric acid and aq silver nitrate. On warming c with concentrated h2so4 and mno2, a red vapour is formed.
! Give as much detail as you can
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