Question

1. What type of chemical reaction takes place when:
(a) digestion of food occurs in the body.
(b) iron rusts.
(c) silver nitrate solution is stirred with copper spoon.
(d) electric current is passed through water.
(e) ammonia and hydrogen chloride gases are mixed.
Ilan heating gives a vellow residue 'B' along with the evolution​

Answer 1

Answer:

a). decomposition reaction take place during digestion of food as  food breaks down into smaller substance that is glucose.

b).oxidation or reduction

c).  single replacement reaction, where copper is changed from its elemental form (Cu) to its blue aqueous ion form (Cu2 ), while the silver ions (Ag+ [aq]) in the silver nitrate solution will be changed into their elemental metallic form (Ag)  

d) decomposition reaction

e)  Synthesis reaction: NH3(g) + HCl (g) → NH4Cl(s)

Explanation: