Question

Write down the molecular formulae of the following compounds by criss-cross method.
a. Barium sulphate
b. Sodium carbonate
c. Lead nitrate
d. Chromium sulphate
e. Ammonium phosphate​

Answer 1

Answer:

a.BaSo4

b. Na2Co3

c. Pb(NO3)2

d. Cr2(SO4)3

e. (NH4)3PO4