State the change in colour seen and write the balanced equation for the following are heated:
a) Copper carbonate
b) Zinc carbonate
c) Mercury (II) oxide
d) Lead (IV) oxide
Answers
Answer:
a)Copper(II) carbonate or cupric carbonate is a chemical compound with formula CuCO ₃. At ambient temperatures, it is an ionic solid consisting of copper(II) cations Cu²⁺ and carbonate anions CO².
b)Zinc Carbonate is a water insoluble Zinc source that can easily be converted to other Zinc compounds, such as the oxide by heating (calcination). Carbonate compounds also give off carbon dioxide when treated with dilute acids. Zinc Carbonate is generally immediately available in most volumes.
c)Mercury(II) oxide, also called mercuric oxide or simply mercury oxide, has a formula of HgO. It has a red or orange color. Mercury(II) oxide is a solid at room temperature and pressure. The mineral form montroydite is very rarely found.
d)Lead(IV) oxide is the inorganic compound with the formula PbO₂. It is an oxide where lead is in an oxidation state of +4. It is a dark-brown solid which is insoluble in water. It exists in two crystalline forms.
Hope it is usefull.
Answer:
a)Copper(II) carbonate or cupric carbonate is a chemical compound with formula CuCO ₃. At ambient temperatures, it is an ionic solid consisting of copper(II) cations Cu²⁺ and carbonate anions CO².
b)Zinc Carbonate is a water insoluble Zinc source that can easily be converted to other Zinc compounds, such as the oxide by heating (calcination). Carbonate compounds also give off carbon dioxide when treated with dilute acids. Zinc Carbonate is generally immediately available in most volumes.
c)Mercury(II) oxide, also called mercuric oxide or simply mercury oxide, has a formula of HgO. It has a red or orange color. Mercury(II) oxide is a solid at room temperature and pressure. The mineral form montroydite is very rarely found.
d)Lead(IV) oxide is the inorganic compound with the formula PbO₂. It is an oxide where lead is in an oxidation state of +4. It is a dark-brown solid which is insoluble in water. It exists in two crystalline forms.
Hope it is usefull.
Explanation: