Question

Describe the colour change when copper 2 carbonate is heated strongly, what happens when dilute Sulfuric acid is added to solid product ? Write balanced equations for reactions involved.​

Answer 1

$\large \rm {\dag{\underbrace{\underline{Elucidation:-}}}}$

━═━═━═━═━═━═━═━═━═━

$\large \sf \purple {\maltese{\underline{\underline{Question\: 1:-}}}}$

☞Describe the colour change when copper carbonate is heated strongly?

$\large \mathbb \green {\dot{\underline{\underline{Answer:-}}}}$

➻When Copper carbonate $\sf {[CuCo_{3}]}$ is strongly heated it forms Copper oxide[CuO] and Carbon dioxide$\sf {[Co_{2}]}$

$\large \tt {CuCo_{3}⟶Cuo+Co_{2}}$

➻Copper carbonate is green in colour while the formed copper oxide is black in colour.Therefore,the observed colour change is from green to black.

━═━═━═━═━═━═━═━═━═━

$\large \sf \orange {\maltese{\underline{\underline{Question\: 2:-}}}}$

☞What happens when dilute Sulfuric acid is added to solid product ?

$\large \mathbb \green {\dot{\underline{\underline{Answer:-}}}}$

➻Basically,a solid product is defined as the the precipitate product (insoluble) formed when two substances react.

➻Examples:$\sf {Mgcl_{2}}$,$\sf {Ca(OH)_{2}}$,$\sf {Agcl}$

➻So, when diluted sulphuric acid $\sf {[H_{2}So_{4}]}$ reacts with Calcium hydroxide$\sf {[Ca(OH)_{2}]}$ calcium sulphate $\sf {[CaSo_{4}]}$and water are formed.

$\tt {H_{2}So_{4}+Ca(OH)_{2}⟶CaSo_{4}⬇+2H_{2}o}$

➻Calcium sulphate$\sf {[CaSo_{4}]}$ is a bluish-white precipitate.

━═━═━═━═━═━═━═━═━═━

☛NOTE:- The arrow "⬇" indicates the formation of precipitate.