Question

2.Giving an example list two information which make a chemical equation more useful (informative).​

Answer 1

Answer:

Refer to the attachment above.

hope it helps you:)

Answer 2

) Physical state of reactants must be mentioned, e.g.

2H2 (g) +O2 (g)--->2H20 ()

(ii) Condition in which reaction takes place are written

on the arrow head, e.g.

2H, (g) + O, (g) burning 2H,0 ()

Consider the following chemical reaction

X+Barium chloride---> Y+ Sodium chloride

(White ppt)

(a) ldentify X and 'Y'

(b) The type of reaction

(a) X is Na2SO4 and Y is BaS04.

(b) The type of reaction

Na2S04 + BaCl--> BaS04 + 2NaCI

(White ppt)

The reaction is precipitation reaction. It is also called

double displacement reaction.