Miss
Surname Centre Number Candidate Signature
Other Names Candidate Number
For Examiner’s Use
General Certificate of Secondary Education June 2007 SCIENCE B Unit Chemistry C1 CHEMISTRY Unit Chemistry C1 Higher Tier Thursday 21 June 2007 1.30 pm to 2.15 pm CHY1H
H
For Examiner’s Use
Question Mark Question Mark
For this paper you must have: a ruler. You may use a calculator.
Time allowed: 45 minutes Instructions Use blue or black ink or ball-point pen. Fill in the boxes at the top of this page. Answer all questions. Answer the questions in the spaces provided. Do all rough work in this book. Cross through any work you do not want to be marked. Information The maximum mark for this paper is 45. The marks for questions are shown in brackets. 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.
1 2
3 4 5
Total (Column 1)
Total (Column 2)
TOTAL
Examiner’s Initials
G/M21768/Jun07/CHY1H
6/6/6/6
CHY1H
2 Answer all questions in the spaces provided.
LEAVE MARGIN BLANK
1 Limestone contains the compound calcium carbonate, CaCO3. (a) Limestone is used to make cement in a rotary kiln. Waste gases Limestone and clay
Methane and air Cement
Use the information in the diagram to name the two main waste gases from this rotary kiln. 1 ..................................................................................................................................... 2 ..................................................................................................................................... (2 marks)
G/M21768/Jun07/CHY1H
3 (b) Columns used as supports for buildings can be made from materials such as limestone blocks or concrete. Concrete mixture Limestone blocks
LEAVE MARGIN BLANK
Steel rods
Concrete is a mixture of cement, sand, small stones and
Other Names Candidate Number
For Examiner’s Use
General Certificate of Secondary Education June 2007 SCIENCE B Unit Chemistry C1 CHEMISTRY Unit Chemistry C1 Higher Tier Thursday 21 June 2007 1.30 pm to 2.15 pm CHY1H
H
For Examiner’s Use
Question Mark Question Mark
For this paper you must have: a ruler. You may use a calculator.
Time allowed: 45 minutes Instructions Use blue or black ink or ball-point pen. Fill in the boxes at the top of this page. Answer all questions. Answer the questions in the spaces provided. Do all rough work in this book. Cross through any work you do not want to be marked. Information The maximum mark for this paper is 45. The marks for questions are shown in brackets. 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.
1 2
3 4 5
Total (Column 1)
Total (Column 2)
TOTAL
Examiner’s Initials
G/M21768/Jun07/CHY1H
6/6/6/6
CHY1H
2 Answer all questions in the spaces provided.
LEAVE MARGIN BLANK
1 Limestone contains the compound calcium carbonate, CaCO3. (a) Limestone is used to make cement in a rotary kiln. Waste gases Limestone and clay
Methane and air Cement
Use the information in the diagram to name the two main waste gases from this rotary kiln. 1 ..................................................................................................................................... 2 ..................................................................................................................................... (2 marks)
G/M21768/Jun07/CHY1H
3 (b) Columns used as supports for buildings can be made from materials such as limestone blocks or concrete. Concrete mixture Limestone blocks
LEAVE MARGIN BLANK
Steel rods
Concrete is a mixture of cement, sand, small stones and