Tag: properties of acids and bases

The other reactant is calcium hydroxide.
$ Ca(OH) _2   +    CO _2 \rightarrow CaCO _3 + H _2O $

Neutral non-metallic oxides are oxides of non-metal that neither neutralizes acids or base, example $CO,\ NO$ and $H _2O$.

When sodium hydroxide reacts with carbon dioxide it gives washing soda, also known as sodium carbonate and water.
$2 NaOH + CO _2  \rightarrow  Na _2CO _3 + H _2O $

The addition of water to a non-metal oxide results in a compound that consists of a non-metal atom surrounded by oxo ($=O$) and hydroxyl ($-OH$) groups. 

When ferrous oxide reacts with nitric acid, the products obtained are ferric nitrate, $NO$ and water.
$3FeO + 10HNO _3 \rightarrow 3Fe(NO _3) _3 + NO + 5H _2O$

Wen $CuO$ reacts with nitric acid, $CuNO _3$ and water are obtained.
$CuO + 2HNO _3 \rightarrow Cu(NO _3) _2 + H _2O$

The reaction of $CuO$ with sulphuric acid gives copper sulphate.
$\displaystyle CuO + H _2SO _4 \rightarrow CuSO _4 + H _2O$

Carbon dioxide reacts with calcium hydroxide to form calcium carbonate and water.
$\displaystyle Ca(OH) _2 + CO _2 \rightarrow CaCO _3 + H _2O$

When few drops of dil. $HCl$ is added to a small amount of red copper oxide, the colour of solution becomes blue due to the formation of chloride of copper $CuCl _2$.
$\displaystyle CuO + 2HCl \rightarrow CuCl _2 + H _2O$

The products of the reaction between $NaOH$ and sulphur dioxide are either $NaHSO _3$ or $Na _2SO _3$
$SO _2 + NaOH \rightarrow NaHSO _3$
$SO _2 + 2NaOH \rightarrow  Na _2SO _3 + H _2O$