Question

The reactants for a certain chemical reaction are shown. Cu(NO3)2 + NaOH → Which of the following shows the correct product or products of this reaction?

Answer 1

Answer : The products of this reaction are,
`Cu(OH)_2` and
`NaNO_3`

Explanation :

First we have to write the balanced chemical reaction.

`Cu(NO_3)_2+2NaOH\rightarrow Cu(OH)_2+2NaNO_3`

In this reaction, 1 mole of copper nitrate react with the 2 moles of sodium hydroxide to give 1 mole of copper hydroxide and 2 moles of sodium nitrate.

This reaction is a double displacement reaction.

Double displacement reaction : A type of reaction in which a positive cation and a negative anion of two reactants react to exchange their places to form two new products.

The general representation of this reaction is,

`XY+AB\rightarrow XB+AY`

(X and A are the cations, Y and B are the anions)

Hence, the products of this reaction are, copper hydroxide,
`Cu(OH)_2` and sodium nitrate,
`NaNO_3`