properties of water

Question 1

a)Amphoteric Nature of water

Answer 1

a)H2O + NH3–>NH4+ + OH-
H2O + H2S—>H3O+ + HS-

Question 2

b)rxn of water with metals:

Answer 2

b)Metal + H2O—>Metal Hydroxide + H2
Metal should be more reactive than H

Question 3

c)Rxn of water with non metals

Answer 3

c)F2 + H2O–>HF + O2
Cl2 + H2O—>HCl + HOCl
Br2 + H2O—->HBr + HOBr

Question 4

d)Rxn of water with ionic compounds:
CaC2 + H2O–>
Be2C + H2O—>
Na2O2 + H2O—>
CaO + H2O—->
KO2 + H2O—->

Answer 4

d)Rxn wtih ionic compounds:
CaC2 + H2O–>Ca(OH)2 + C2H2
Be2C + H2O—>Be(OH)2 + CH4
Na2O2 + H2O—>Na(OH) + H2O2
CaO + H2O—->Ca(OH)2
KO2 + H2O—->KOH + H2O2 + O2