Reactions Of Metals With Oxygen Flashcards
Describe 2 adjectives to define oxygen
Colourless and Odourless
Define combustion
Rapid chemical reaction with oxygen that produces heat and light
Define “oxide”
Compound formed when substance reacts with oxygen
Define the term “metal oxide “
Compound formed when a metal reacts with oxygen
The percentage of oxygen in the air is
20%
Name all 7 diatomic elements
Hydrogen, Nitrogen, Flourine, Have No Fear Of Ice Cold Beer Oxygen, Iodine, Chlorine, Bromine.
Define “oxidation “
When a substance reactions with oxygen
The formula to create metal oxide
Metal+ Oxygen =metal oxide
When burned in pure oxygen sodium gives of the colour of
It burns with a bright yellow flame
The metal oxide that is formed when sodium and pure oxygen combine is
Sodium oxide
(Na2O)
(All numbers to come are small
The number above is a small 2 meaning)
The metal oxide that is formed when potassium burns in pure oxygen is
Potassium oxide
K20
(Small2)
When burned in pure oxygen the colour potassium gives off is
It burns with a bright light ,
What proof is there that sodium very combustible
When burnt in pure oxygen sodium’s bright yellow flame reacts immediately and has a much larger form than the others .
It has to be kept in oil to prevent it reacting wit pure oxygen
What is the metal oxide that is formed when calcium is burnt with pure oxygen
Calcium oxide
CaO
What colour does calcium give off when burnt with pure oxygen
It gives off a pure white colour but is less vigourous because it is not as combustable as sodium and potassium
