Chemistry Spm 2016 Salt

CHEMISTRY REVISION SPM 2016 CHAPTER 8 SALTS

SALTS

SOLUBLE SALTS

ALL Na, K,

A L L Ni t r a t e ,

INSOLUBLE A L L Su l p h a t e ,

AL L

ALL Carbonate, Pb, Ag, Hg Pb, Ba, Ca

ACID + ALKALI  SALT + !ATE"

ACID + $ETAL  SALT +# H ACID + $ETAL O%IDE  SALT +#OH ACID + $ETAL CA"BONATE SALT + #CO + H#O

# SOLUBLE SALTS  SALT + P"ECIPITATE

CHEMISTRY REVISION SPM 2016 CHAPTER 8 ! SALTS 1 (a)

The equation shows the reaction between zinc and acid X. Acid X is a monoprotic acid. Zn + Acid X → Salt  + !" #ased on the equation$ (i)

su%%est acid X and identi&' salt .

(ii)

&rom 'our answer in 1(a)(i)$ write a chemical equation &or the reaction

" mars* " mars*

(b) ia%ram 1 shows a &low chart o& zinc salts.

ZnSO4

+ Solution "

ZnCl2 ZnSO4

ZnCO3



Salt

"ea&tion I "ea&tion II + A&i' !

Zinc salt ia%ram 1 All the three salts$ ZnS,-$ Zn/$ and Zn(0, )"$ in ia%ram 1 can be con2erted to Zn, $ b' reaction /$ then Zn,  reacts with acid 3 to &orm a zinc salt throu%h reaction //. (i)

#' choosin% one o& the three salts in ia%ram 1$ su%%est solution 4 to prepare zinc carbonate$ Zn,. 3rite the chemical equation in2ol2ed and describe a laborator' e5periment to prepare zinc carbonate$ Zn,. 6 mars*

(ii) Su%%est acid 3 to prepare an'

one

o& the three zinc salt in ia%ram 1.

3rite a chemical equation in2ol2ed and describe a laborator' e5periment to prepare the salts. 6 mars*