Student
Centre Number Surname Other Names Candidate Signature
Candidate Number
For Examiner’s Use
Examiner’s Initials
Question
Mark
General Certificate of Secondary Education Foundation Tier June 2011
1 2 3 4 5 6 7 TOTAL
Additional Science
Unit Chemistry C2
CHY2F
Chemistry
Unit Chemistry C2 Wednesday 25 May 2011
For this paper you must have: the Data Sheet (enclosed). You may use a calculator.
F
9.00 am to 9.45 am
Time allowed 45 minutes Instructions Use black ink or black ball-point pen. Fill in the boxes at the top of this page. Answer all questions. You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. Do all rough work in this book. Cross through any work you do not want to be marked. Information The marks for questions are shown in brackets. The maximum mark for this paper is 45. You are expected to use a calculator where appropriate. You are reminded of the need for good English and clear presentation in your answers. Advice In all calculations, show clearly how you work out your answer.
(Jun11CHY2F01)
G/J68916
6/6/6
CHY2F
2 Answer all questions in the spaces provided.
Do not write outside the box
1
The diagram shows how the atoms are bonded in ammonia.
H
N
H
H
1 (a) 1 (a) (i)
Draw a ring around the correct answer. The formula of an ammonia molecule is NH3 N3H NH3 (1 mark)
1 (a) (ii) The particles represented by the dots () and crosses (x) in the diagram are electrons neutrons protons (1 mark) 1 (a) (iii) The bonds between the nitrogen and hydrogen atoms in ammonia are covalent ionic metallic (1 mark)
(02)
G/J68916/Jun11/CHY2F
3 1 (b) Ammonia is made by reacting nitrogen with hydrogen in the Haber process. The equation for this reaction is shown below. nitrogen 1 (b) (i) + hydrogen
Do not write outside the box
ammonia
Use words from the box to complete the sentences.
Candidate Number
For Examiner’s Use
Examiner’s Initials
Question
Mark
General Certificate of Secondary Education Foundation Tier June 2011
1 2 3 4 5 6 7 TOTAL
Additional Science
Unit Chemistry C2
CHY2F
Chemistry
Unit Chemistry C2 Wednesday 25 May 2011
For this paper you must have: the Data Sheet (enclosed). You may use a calculator.
F
9.00 am to 9.45 am
Time allowed 45 minutes Instructions Use black ink or black ball-point pen. Fill in the boxes at the top of this page. Answer all questions. You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. Do all rough work in this book. Cross through any work you do not want to be marked. Information The marks for questions are shown in brackets. The maximum mark for this paper is 45. You are expected to use a calculator where appropriate. You are reminded of the need for good English and clear presentation in your answers. Advice In all calculations, show clearly how you work out your answer.
(Jun11CHY2F01)
G/J68916
6/6/6
CHY2F
2 Answer all questions in the spaces provided.
Do not write outside the box
1
The diagram shows how the atoms are bonded in ammonia.
H
N
H
H
1 (a) 1 (a) (i)
Draw a ring around the correct answer. The formula of an ammonia molecule is NH3 N3H NH3 (1 mark)
1 (a) (ii) The particles represented by the dots () and crosses (x) in the diagram are electrons neutrons protons (1 mark) 1 (a) (iii) The bonds between the nitrogen and hydrogen atoms in ammonia are covalent ionic metallic (1 mark)
(02)
G/J68916/Jun11/CHY2F
3 1 (b) Ammonia is made by reacting nitrogen with hydrogen in the Haber process. The equation for this reaction is shown below. nitrogen 1 (b) (i) + hydrogen
Do not write outside the box
ammonia
Use words from the box to complete the sentences.