magnesium crucible

Question 1

First step Weigh the ………. then weigh the amount of with the

Answer 1

crucible

crucible Magnesium

Question 2

Then ………. the crucible with the magnesium to make

Answer 2

Combines with oxygen to make magnesium oxide

Question 3

How to prevent magnesium oxide being lost as smoke

Answer 3

add lid

Question 4

errors

Answer 4

Leave lid off magnesium oxide escapes as smoke

or magnesium doesn’t burn completely

Question 5

Then measure the mass afterwards

Answer 5

Takeaway starting mass with just magnesium by magnesium oxide to get oxygen alone