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Monday, 22 February 2021

Heating Zinc Oxide

Heating Zinc Oxide 

AIM - To See what change occurs when we heat zinc oxide with a bunsen burner. 

EQUIPMENT - 

1 - Bunsen burner 
2 - Gas 
3 - Heating mat 
4 - Lighter 
5 - Tripod 
6 - Safety Glasses 
7 - Crucible 
8 - Crucible holder 
9 - Zinc Oxide 

RESULTS - 

The zinc oxide started from a standard white powder color and as it was slowly heated from the bunsen burner the color transformed into an almost neon yellow/green colour.  When we turned off the heat to let the zinc oxide cool down it returned back to the original white colour. 

DISCUSSION - 

When we heat up the zinc oxide some of it loses oxygen, During this process, the electrons in the atoms move shells/ levels as a result of this the colour of the substance changes. Therefore the reason behind the zinc oxide changing colour is because of the electrons moving between shells. 


Image result for zinc oxide

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