Y11 CHE Week 24 EXP 2 - long answer questions
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Last updated almost 2 years ago
5 questions
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A teacher drops a bottle containing sodium chloride. The bottle breaks when it hits the floor. The teacher sweeps up the mixture of sodium chloride and glass. Describe how the teacher can obtain a pure, dry sample of sodium chloride from the mixture (4 marks)
A teacher drops a bottle containing sodium chloride. The bottle breaks when it hits the floor. The teacher sweeps up the mixture of sodium chloride and glass. Describe how the teacher can obtain a pure, dry sample of sodium chloride from the mixture (4 marks)
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This question is about sodium carbonate, Na2CO3 (a) A teacher finds an unlabelled bottle containing a white solid. Describe tests the teacher could do to show that the white solid is sodium carbonate. (5 marks)
This question is about sodium carbonate, Na2CO3 (a) A teacher finds an unlabelled bottle containing a white solid. Describe tests the teacher could do to show that the white solid is sodium carbonate. (5 marks)
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Describe a method the student could use to find which of the three solids is the most effective catalyst for the decomposition of hydrogen peroxide solution. (5 marks)
Describe a method the student could use to find which of the three solids is the most effective catalyst for the decomposition of hydrogen peroxide solution. (5 marks)