Question

Will the following reaction occur?

Mg + HCI →
o Yes, magnesium will replace hydrogen because a bond between H-Cl is unstable.
Yes, magnesium will replace hydrogen because hydrogen is higher on the activity series
list.
o
o this reaction will not occur
Yes, magnesium will replace hydrogen because magnesium is higher on the activity
series list.
2 3 4 5 6
7
8
9 10 11

Answer 1

Answer: Yes, magnesium will replace hydrogen because magnesium is higher on the activity series list.

Step-by-step explanation:

A single replacement reaction is one in which a more reactive element displaces a less reactive element from its salt solution.

A general single displacement reaction can be represented as :

`X+YZ\rightarrow XZ+Y`

`Mg+2HCl\rightarrow MgCl_2+H_2`

When magnesium is added to hydrochloric acid, magnesium being more reactive than hydrogen displaces hydrogen atom its salt solution and lead to formation of magnesium chloride and hydrogen gas.