What happen to lead oxide when heated?

It will change it's colour

To brown colour

The most stable oxidation state of lead is Pb(II) due to the inert-pair-effect. Inert pair effect

Lead oxides are :

1 lead monoxide PbO has no effect on heating .

2 lead dioxide PbO2 decomposes into lead monoxide and Oxygen .

2PbO2=2PbO+ O2

3 Trilead tetra oxide (Red lead) on heating decomposes into lead monoxide and Oxygen 2pb3O4= 6PbO+O2

I don’t no

There are two oxides for lead. One is lead(II) oxide, another one is lead (IV) oxide.
Lead (IV) oxide is thermally unstable and it tends to decompose into lead(II) oxide and oxygen upon heating.
$2PbO_2 ightarrow 2PbO +O_2$

Whereas when lead(II) oxide is heated to around 450-480 °C, it forms lead(II,IV) oxide, also known as red lead or triplumbic tetroxide.

$6PbO + O_2 ightarrow 2 Pb_3O_4$

If it is heated above 480 °C, reverse reaction will occur.

$2 Pb_3O_4 ightarrow 6PbO + O_2$

Lead oxide when heated to its melting point results into oxygen liberation due to gained of energy and at tarnsistion state and lead removed as melted powder

There is no chemical change when lead oxide (lead(II) oxide) is heated. However, lead oxide changes its color when heated.

At room temperature, lead oxide is yellow solid. When heated, it will change to orange. On further heating, it change to brown.

When the heated lead oxide is cooled back to room temperature, it will change from brown to orange and finally to yellow.

If you heat Pb3O4 a colourless odourless gas will be evolved i.e Oxygen that will rekindle a glowing splinter and PbO will be formed.

On heating PbO2 it will decompose into PbO and O2

There are two oxides of copper.

• Copper(I) oxide (cuprous oxide, Cu2O) , red color forms below 300 C
• Copper(II) oxide (cupric oxide, CuO), brown,black oxide that forms above 300 C

Continued heating to 1326 C results in melting and at 2000C, it boils.

Black and red copper oxides