Question

Chemical properties of iron ,silver,zinc and lead

Answer 1

IRON
Iron is a very active metal. It readily combines with oxygen in moist air. The product of this reaction, iron oxide (Fe 2 O 3 ), is known as rust. Iron also reacts with very hot water and steam to produce hydrogen gas. It also dissolves in most acids and reacts with many other element
SILVER
chemical formula of silver is Ag
silver does not react with oxygen nitrogen hydrogen at normal room temperature
Oxidation : A thin film on the surface of silver as a result of oxygen absorption that increases with temperature and pressure
Compounds : Silver forms complex compounds, most of which are soluble in water
Cyanidation : The extraction from ores requires cyanidation - the dissolution of silver in an alkaline solution of sodium cyanide with an inlet for air
ZINC
In or­di­nary con­di­tions, the swift reactionof zinc with air takes place – the met­al is cov­ered with a dull gray coat­ing (zinc ox­ide). Zinc also re­acts with oth­er sub­stances: halo­gens, oxy­gen, chalco­gens, al­ka­lis, acids, am­mo­ni­um and am­mo­nia salts, and also with met­als. Zinc does not re­act with ni­tro­gen, and is an amor­phic met­al. In re­ac­tions with al­ka­lis, the el­e­ment forms com­plex com­pounds – hy­droxo-zin­cates
LEAD
Chemical Formula : Pb
Reactivity with water : Dissolves slowly in water
Oxidation  : Does not readily react with oxygen in the air
Flammability : Does not burnReactivity with acids Reacts quickly with hot acids but slowly to cold acids
Corrosion : Very resistant to corrosion but tarnishes upon exposure to airToxicity : Toxic