Question

help me to find the answer .lt is very urgent​

Answer 1

Answer:

2.

(i)BaCl2

(ii)ZnO

(iii)Valency of Ca is2

Explanation:

yes

Answer 2

Explanation:

a. BaCl2

b. ZnO

c. +2

Q2methane.... CH4. 4hydrogen atoms on all sides of carbon

ethane C2H6. 3H atoms on each C atom