reaction of metals with oxygen

Question 1

how does magnesium react with oxygen?

Answer 1

rapidly, releases a great deal of heat and light

this is a very vigorous reaction

Question 2

how does iron react with oxygen

Answer 2

reacts slower with oxygen, takes weeks or months to react

Question 3

Magnesium + oxygen —> magnesium oxide

a) what is this word equation trying to represent
b) what is the result tell us about the oxygen in the reaction

Answer 3

when a metal reacts with oxygen, we form the metal oxide

the metal has oxidised (gained oxygen)

Question 4

what is the word equation for a metal reaction

Answer 4

metal + oxide = metal oxide

Question 5

what reaction is gaining oxygen called

Answer 5

gaining oxygen is called an oxidation reaction

Question 6

What is OIL RIG

Answer 6

O xidation
I s
L oss ( of electrons)

R eduction
I s
G ain (of electrons)

Question 7

what happens when metals react with oxygen

Answer 7

we form the metal oxide and an oxidation reaction takes place

the metal atoms have been oxidised

Question 8

Magnesium oxide —> magnesium + oxygen

is an example of what type of reaction?

Answer 8

a reduction reaction

Question 9

what happens in a reduction reaction?

Answer 9

oxygen is lost

the metal atoms have reduced

Question 10

which element has been oxidised and which element has been reduced here?

calcium+copper oxide->calcium oxide+copper

Answer 10

calcium has been oxidised

the copper has been reduced