Question

What is the valency of:
(a) fluorine in CaF2 (b) sulphur in SF (c) phosphorus in PH, (d) carbon in CH
(e) nitrogen in the following compounds:
I NO
(m) NOS
(m) NO,
(Manganese in MnO, g) Copper is Cu,o (h) Magnesium in Mg N
7. Why should an equation be balanced ? Explain with the help of a simple equation.
(iv) NO​

Answer 1

Answer:

a.-1

b.6

c.-3

d.4

e.2

2

3

f.-2

g.2,1

h.mg=2

n=3

7.The chemical equation needs to be balanced so that it follows the law of conservation of mass.Balancing chemical equations is a process of trial and error.

example =KNO3→KNO2+O2

HOPE IT WILL HELP YOU...

Answer 2

Explanation:

yifuyfihcuicyicgi hfcgucjgcgjcykcyicti time, gicyicyiciycugycgucticgcgchckycykcgigicyjfyifyfuch