Apart blue, green, red and yellow, any other fireworks color can be obtained by a mineral mix. For example, purple can be ...

This is called thermal decomposition. Watch this video to see how the colour of copper carbonate changes when it is heated. Copper carbonate is green and copper oxide is black. You can see a ...

Copper carbonate is green and copper oxide is black. You can see a colour change from green to black during the reaction. The carbon dioxide produced can be detected using limewater, which turns ...