Question

What chemical change occurred in the following reaction?Mg2+(aq)+2OH−(aq)⟶ Mg(OH)2(s)

Answer 1

A precipitate will form.

Answer 2

Answer: In this reaction, a precipitate is being formed.

Step-by-step explanation:

A chemical change can be determined by the following indicators:

• A characteristic odor
• Color change
• Formation of bubbles
• Formation of precipitate
• Evolution of gas

When magnesium ions and hydroxide ions react in aqueous state, it leads to the formation of a white colored solid of magnesium hydroxide.

In the above reaction, a precipitate is being formed and hence the reaction is considered as a precipitation reaction.

`Mg^(2+)(aq.)+2OH^-(aq.)\rightarrow Mg(OH)_2(s)`

Therefore, in this reaction, the chemical change is that the precipitate is getting formed.