.. by druge......
b) The set up below was used to investigate the burning of candle. Study it and answer the
questions that follow.
Candle Flame
Cotton Wool
Tube M
Gas to Pump
Tube N
L
Calcium Oxide
Tube L
Tube L
Solid Calcium Chloride
(1) State and explain the change in mass that is likely to occur in tube N by the end of the
experiment.
(2 marks)
MOM
ASSIMO
(ii) Explain why potassium is kept under paraffin while phosphorous under water. (2 marks)
​