Chemistry Paper 2

1769 Words Feb 5th, 2014 8 Pages
N10/4/CHEMI/SP2/ENG/TZ0/XX

88106105

CHEMISTRY
STANDARD LEVEL
PAPER 2
Thursday 11 November 2010 (afternoon)

Candidate session number
0

1 hour 15 minutes

0

INSTRUCTIONS TO CANDIDATES





Write your session number in the boxes above.
Do not open this examination paper until instructed to do so.
Section A: answer all of Section A in the spaces provided.
Section B:  answer one question from Section B. Write your answers on answer sheets.
Write your session number on each answer sheet, and attach them to this examination paper and your cover sheet using the tag provided.
• At the end of the examination, indicate the numbers of the questions answered in the candidate box on your cover sheet and
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[1]

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(c)

The colour of the solution changed from blue to colourless. Deduce the amount, in moles, of zinc which reacted in the polystyrene cup.

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[1]

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(d) Calculate the enthalpy change, in kJ mol–1, for this reaction.

[1]

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(This question continues on the following page)
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8810-6105

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N10/4/CHEMI/SP2/ENG/TZ0/XX

(Question 1 continued)
(e)

An experiment was designed to investigate how the enthalpy change for a displacement reaction relates to the reactivities of the metals involved. The following metals in order

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