Question

Give an example of a chemical reaction characterised the
change in temperature.
What type of chemical reactions take place when :
(a) limestone is heated ?
(b) a magnesium wire is burnt in air ?
(c) electricity is passed through water ?
(d) ammonia and hydrogen chloride are mixed ?
(e) silver bromide is exposed to sunlight​

Answer 1

Answer:

Explanation:

) Combination reaction: 2Mg+O

2

​

→2MgO

b) Decomposition reaction: CaCO

3

​

→CaO+CO

2

​

c) Decomposition reaction: 2AgBr→2Ag+Br

2

​

d) Decomposition reaction: 2H

2

​

O→2H

2

​

+O

2

​

e) Combination reaction: NH

3

​

+HCl→NH

4

​

Cl