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.. 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)
Sagot :
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