Chemistry
Give balanced chemical equations for the following.
(a) Calcium bicarbonate reacts with dilute hydrochloric acid.
(b) Ferric hydroxide with nitric acid.
(c) Zinc nitrate with ammonium hydroxide
Related Questions
Name a probable cation present based on the following observation.
(a) White precipitate insoluble in NH4OH but soluble in NaOH.
(b) NaOH solution when added to the solution (A) gives a reddish brown precipitate.
State one relevant observation for each of the the following reactions.
(a) When hydrogen chloride gas is passed through a solution of sodium thiosulphate.
(b) Concentrated sulphuric acid is added to a solution of potassium nitrate.
(c) When fused lead bromide is electrolysed.
The following questions relate to mole concept.
(a) the volume of 320 g of SO2 at STP.
(Atomic mass of S = 32 and O = 16)
(b) the mass of 1022 atoms of sulphur.
[Atomic mass : S = 32 and O = 16, Avogadro's number (NA) = 6.022 x 1023]
For each of the substances given below, what is the role played in extraction of ZnO and Al respectively.
(a) Coke
(b) Cryolite