AQA GCSE Chemistry Unit 1 Exam (9th June) [OFFICIAL THREAD]
Scroll to see replies
Original post by Rtdsv
How bad was this actual Biology exam? What kind of maths stuff came up?
I didn't think it was bad at all...
But anyway maths stuff:
Averages, I think we found a range
Basic percentage change
Interpreting graphs and then adding and subtracting
GOOD LUCK
Original post by Young Sinatra
Thanks you too
It's at 1 right?
It's at 1 right?
Depends on your school. My school's starts at 1:30 but my friend's starts at 1.
Original post by Palette
Hoax Paper
1. Saprypo, a drug trafficker, makes a new drug called LPI.
The first stage in making LPI is by reacting 38 g of silicon tetrachloride with with 39 grams of hydrogen and a certain quantity of oxygen to produce 100 g of silicon dioxide:
SiCl4 + 2 H2 + O2 → SiO2 + _ HCl
a) Balance the above equation. [1 mark]
b) How many grams of oxygen are required to make 100 g of silicon dioxide, and how did you arrive at your answer? [2 marks]
c) Describe the bonding that takes place between silicon and oxygen to form silicon dioxide You may draw a diagram to aid your answer. [3 marks]
d) Compare the electronic structures, as fully as you can, of silicon (14 electrons) and neon (10 electrons) [2 marks].
2.
a) Compare advantages and disadvantages of concrete over limestone as building materials. [6 marks].
b) What is the primary source of limestone (calcium carbonate)? [2 marks]
c) The large industrial town of Brighton has found limestone deposits on the outskirts of the town equal to limestone deposits found at the Kerrington National Park. Kerrington National Park is in the remote Highlands of Scotland. Suggest two environmental reasons for quarrying near Brighton than quarrying at Kerrington. [2 marks].
3.
a) The results of an experiment was shown below:
Volume of carbon (m^3) per m^3 of steel Density (kg/m^3)
0.25 22
0.3 19
0.35 16
0.4 13
0.45 9
0.5 5
i) The final two readings are anomalies. How can the student check that these results were anomalies [1 mark]
ii) Should the student start the experiment again? Give one reason for and one reason against [2 marks]
iii) Which volume of carbon per m^3 of steel should be used in car steel panels, and why? [2 marks]
b) Saprypo, after he was caught trafficking 30 kg of methamphetamine, became a successful chairman of a metal processing company upon his release.
Pina Rosa, in Brazil, has large stores of iron. The iron is however near the Amazon Basin.
i) What is bioleaching? [2 marks]
ii) Give two reasons why he should consider bioleaching rather than conventional methods. [2 marks]
iii) Give one reason why he may pursue conventional methods nonetheless [1 mark]
4.
a) Here are some alkanes.
Alkane Boiling Point (C)
Pentane 36
Hexane 69
Heptane 98
Octane 125
Nonane 150
Decane 174
Decane is not economical to use as a fuel in households. Suggest and explain why using the table [4 marks]
b) Suggest and explain a social advantage in removing sulfur from fuels before combustion. [3 marks]
iii) Suggest why both carbon monoxide and particulates are harmful to humans [4 marks].<--- Biology, but it's AQA!
5.
a) Ethanol can be produced by reacting ethene with water.
i) What is the name of this type of reaction? [1 mark]
ii) Give a method the ethene can be obtained from and describe it [3 marks].
iii) Suggest and explain why the production of ethanol from ethene is not environmentally friendly [2 marks].
However, producers still prefer to produce ethanol from ethene.
iv) Give one reason why [1 marks]
b) Alkenes are unsaturated hydrocarbons.
i) Define the term 'unsaturated hydrocarbons'? Do not mention the word alkene[2 marks].
ii) Plastics made from cornstarch havebeen developed. Why? [3 marks]
7.
Explain how plant oils can be extracted from plants using distillation [4 marks].
8.
a)
i) Explain how Miller and Urey believed abiogenesis (making life from non life) to be possible. In your answer you should refer to at least two of the gases in the atmosphere at that time. [3 marks]
ii) Suggest a shortcoming of the Miller Urey experiment [1 mark]
ii) Suggest one other theory about the origins of life [1 mark]
End of questions.
1. Saprypo, a drug trafficker, makes a new drug called LPI.
The first stage in making LPI is by reacting 38 g of silicon tetrachloride with with 39 grams of hydrogen and a certain quantity of oxygen to produce 100 g of silicon dioxide:
SiCl4 + 2 H2 + O2 → SiO2 + _ HCl
a) Balance the above equation. [1 mark]
b) How many grams of oxygen are required to make 100 g of silicon dioxide, and how did you arrive at your answer? [2 marks]
c) Describe the bonding that takes place between silicon and oxygen to form silicon dioxide You may draw a diagram to aid your answer. [3 marks]
d) Compare the electronic structures, as fully as you can, of silicon (14 electrons) and neon (10 electrons) [2 marks].
2.
a) Compare advantages and disadvantages of concrete over limestone as building materials. [6 marks].
b) What is the primary source of limestone (calcium carbonate)? [2 marks]
c) The large industrial town of Brighton has found limestone deposits on the outskirts of the town equal to limestone deposits found at the Kerrington National Park. Kerrington National Park is in the remote Highlands of Scotland. Suggest two environmental reasons for quarrying near Brighton than quarrying at Kerrington. [2 marks].
3.
a) The results of an experiment was shown below:
Volume of carbon (m^3) per m^3 of steel Density (kg/m^3)
0.25 22
0.3 19
0.35 16
0.4 13
0.45 9
0.5 5
i) The final two readings are anomalies. How can the student check that these results were anomalies [1 mark]
ii) Should the student start the experiment again? Give one reason for and one reason against [2 marks]
iii) Which volume of carbon per m^3 of steel should be used in car steel panels, and why? [2 marks]
b) Saprypo, after he was caught trafficking 30 kg of methamphetamine, became a successful chairman of a metal processing company upon his release.
Pina Rosa, in Brazil, has large stores of iron. The iron is however near the Amazon Basin.
i) What is bioleaching? [2 marks]
ii) Give two reasons why he should consider bioleaching rather than conventional methods. [2 marks]
iii) Give one reason why he may pursue conventional methods nonetheless [1 mark]
4.
a) Here are some alkanes.
Alkane Boiling Point (C)
Pentane 36
Hexane 69
Heptane 98
Octane 125
Nonane 150
Decane 174
Decane is not economical to use as a fuel in households. Suggest and explain why using the table [4 marks]
b) Suggest and explain a social advantage in removing sulfur from fuels before combustion. [3 marks]
iii) Suggest why both carbon monoxide and particulates are harmful to humans [4 marks].<--- Biology, but it's AQA!
5.
a) Ethanol can be produced by reacting ethene with water.
i) What is the name of this type of reaction? [1 mark]
ii) Give a method the ethene can be obtained from and describe it [3 marks].
iii) Suggest and explain why the production of ethanol from ethene is not environmentally friendly [2 marks].
However, producers still prefer to produce ethanol from ethene.
iv) Give one reason why [1 marks]
b) Alkenes are unsaturated hydrocarbons.
i) Define the term 'unsaturated hydrocarbons'? Do not mention the word alkene[2 marks].
ii) Plastics made from cornstarch havebeen developed. Why? [3 marks]
7.
Explain how plant oils can be extracted from plants using distillation [4 marks].
8.
a)
i) Explain how Miller and Urey believed abiogenesis (making life from non life) to be possible. In your answer you should refer to at least two of the gases in the atmosphere at that time. [3 marks]
ii) Suggest a shortcoming of the Miller Urey experiment [1 mark]
ii) Suggest one other theory about the origins of life [1 mark]
End of questions.
is this the exam today?
Original post by Palette
Hoax Paper
1. Saprypo, a drug trafficker, makes a new drug called LPI.
The first stage in making LPI is by reacting 38 g of silicon tetrachloride with with 39 grams of hydrogen and a certain quantity of oxygen to produce 100 g of silicon dioxide:
SiCl4 + 2 H2 + O2 → SiO2 + _ HCl
a) Balance the above equation. [1 mark]
b) How many grams of oxygen are required to make 100 g of silicon dioxide, and how did you arrive at your answer? [2 marks]
c) Describe the bonding that takes place between silicon and oxygen to form silicon dioxide You may draw a diagram to aid your answer. [3 marks]
d) Compare the electronic structures, as fully as you can, of silicon (14 electrons) and neon (10 electrons) [2 marks].
2.
a) Compare advantages and disadvantages of concrete over limestone as building materials. [6 marks].
b) What is the primary source of limestone (calcium carbonate)? [2 marks]
c) The large industrial town of Brighton has found limestone deposits on the outskirts of the town equal to limestone deposits found at the Kerrington National Park. Kerrington National Park is in the remote Highlands of Scotland. Suggest two environmental reasons for quarrying near Brighton than quarrying at Kerrington. [2 marks].
3.
a) The results of an experiment was shown below:
Volume of carbon (m^3) per m^3 of steel Density (kg/m^3)
0.25 22
0.3 19
0.35 16
0.4 13
0.45 9
0.5 5
i) The final two readings are anomalies. How can the student check that these results were anomalies [1 mark]
ii) Should the student start the experiment again? Give one reason for and one reason against [2 marks]
iii) Which volume of carbon per m^3 of steel should be used in car steel panels, and why? [2 marks]
b) Saprypo, after he was caught trafficking 30 kg of methamphetamine, became a successful chairman of a metal processing company upon his release.
Pina Rosa, in Brazil, has large stores of iron. The iron is however near the Amazon Basin.
i) What is bioleaching? [2 marks]
ii) Give two reasons why he should consider bioleaching rather than conventional methods. [2 marks]
iii) Give one reason why he may pursue conventional methods nonetheless [1 mark]
4.
a) Here are some alkanes.
Alkane Boiling Point (C)
Pentane 36
Hexane 69
Heptane 98
Octane 125
Nonane 150
Decane 174
Decane is not economical to use as a fuel in households. Suggest and explain why using the table [4 marks]
b) Suggest and explain a social advantage in removing sulfur from fuels before combustion. [3 marks]
iii) Suggest why both carbon monoxide and particulates are harmful to humans [4 marks].<--- Biology, but it's AQA!
5.
a) Ethanol can be produced by reacting ethene with water.
i) What is the name of this type of reaction? [1 mark]
ii) Give a method the ethene can be obtained from and describe it [3 marks].
iii) Suggest and explain why the production of ethanol from ethene is not environmentally friendly [2 marks].
However, producers still prefer to produce ethanol from ethene.
iv) Give one reason why [1 marks]
b) Alkenes are unsaturated hydrocarbons.
i) Define the term 'unsaturated hydrocarbons'? Do not mention the word alkene[2 marks].
ii) Plastics made from cornstarch havebeen developed. Why? [3 marks]
7.
Explain how plant oils can be extracted from plants using distillation [4 marks].
8.
a)
i) Explain how Miller and Urey believed abiogenesis (making life from non life) to be possible. In your answer you should refer to at least two of the gases in the atmosphere at that time. [3 marks]
ii) Suggest a shortcoming of the Miller Urey experiment [1 mark]
ii) Suggest one other theory about the origins of life [1 mark]
End of questions.
1. Saprypo, a drug trafficker, makes a new drug called LPI.
The first stage in making LPI is by reacting 38 g of silicon tetrachloride with with 39 grams of hydrogen and a certain quantity of oxygen to produce 100 g of silicon dioxide:
SiCl4 + 2 H2 + O2 → SiO2 + _ HCl
a) Balance the above equation. [1 mark]
b) How many grams of oxygen are required to make 100 g of silicon dioxide, and how did you arrive at your answer? [2 marks]
c) Describe the bonding that takes place between silicon and oxygen to form silicon dioxide You may draw a diagram to aid your answer. [3 marks]
d) Compare the electronic structures, as fully as you can, of silicon (14 electrons) and neon (10 electrons) [2 marks].
2.
a) Compare advantages and disadvantages of concrete over limestone as building materials. [6 marks].
b) What is the primary source of limestone (calcium carbonate)? [2 marks]
c) The large industrial town of Brighton has found limestone deposits on the outskirts of the town equal to limestone deposits found at the Kerrington National Park. Kerrington National Park is in the remote Highlands of Scotland. Suggest two environmental reasons for quarrying near Brighton than quarrying at Kerrington. [2 marks].
3.
a) The results of an experiment was shown below:
Volume of carbon (m^3) per m^3 of steel Density (kg/m^3)
0.25 22
0.3 19
0.35 16
0.4 13
0.45 9
0.5 5
i) The final two readings are anomalies. How can the student check that these results were anomalies [1 mark]
ii) Should the student start the experiment again? Give one reason for and one reason against [2 marks]
iii) Which volume of carbon per m^3 of steel should be used in car steel panels, and why? [2 marks]
b) Saprypo, after he was caught trafficking 30 kg of methamphetamine, became a successful chairman of a metal processing company upon his release.
Pina Rosa, in Brazil, has large stores of iron. The iron is however near the Amazon Basin.
i) What is bioleaching? [2 marks]
ii) Give two reasons why he should consider bioleaching rather than conventional methods. [2 marks]
iii) Give one reason why he may pursue conventional methods nonetheless [1 mark]
4.
a) Here are some alkanes.
Alkane Boiling Point (C)
Pentane 36
Hexane 69
Heptane 98
Octane 125
Nonane 150
Decane 174
Decane is not economical to use as a fuel in households. Suggest and explain why using the table [4 marks]
b) Suggest and explain a social advantage in removing sulfur from fuels before combustion. [3 marks]
iii) Suggest why both carbon monoxide and particulates are harmful to humans [4 marks].<--- Biology, but it's AQA!
5.
a) Ethanol can be produced by reacting ethene with water.
i) What is the name of this type of reaction? [1 mark]
ii) Give a method the ethene can be obtained from and describe it [3 marks].
iii) Suggest and explain why the production of ethanol from ethene is not environmentally friendly [2 marks].
However, producers still prefer to produce ethanol from ethene.
iv) Give one reason why [1 marks]
b) Alkenes are unsaturated hydrocarbons.
i) Define the term 'unsaturated hydrocarbons'? Do not mention the word alkene[2 marks].
ii) Plastics made from cornstarch havebeen developed. Why? [3 marks]
7.
Explain how plant oils can be extracted from plants using distillation [4 marks].
8.
a)
i) Explain how Miller and Urey believed abiogenesis (making life from non life) to be possible. In your answer you should refer to at least two of the gases in the atmosphere at that time. [3 marks]
ii) Suggest a shortcoming of the Miller Urey experiment [1 mark]
ii) Suggest one other theory about the origins of life [1 mark]
End of questions.
how did you come up with that wow
for the limestone vs concrete one, what would be some advantages of limestone? can only come up with disadvantages and advantages of concrete. thanks
good luck everybody!
Original post by iKali
is this the exam today?
Lolololol no, just a practice paper made by the talented Palette
Anyone done the c1 exam yet?
Original post by Eshanth
Hydration reaction ---> water is added
Ethene + Steam ---> Ethanol
C2H4 + H2O ---> C2H5OH
+ continuous process - lots made!
+ Produces no waste products
- Requires lost of heat and energy
- Relies on a non renewable resource
Fermentation---> Sugar from plants is broken down by enzymes in yeast
Sugar + yeast ---> Ethanol + Carbon Dioxide
+ uses renewable resources
- Takes longer to produce
- CO2 is given off.
Ethene + Steam ---> Ethanol
C2H4 + H2O ---> C2H5OH
+ continuous process - lots made!
+ Produces no waste products
- Requires lost of heat and energy
- Relies on a non renewable resource
Fermentation---> Sugar from plants is broken down by enzymes in yeast
Sugar + yeast ---> Ethanol + Carbon Dioxide
+ uses renewable resources
- Takes longer to produce
- CO2 is given off.
Thanks
Original post by CirqueDesRêves
Thanks
Np!
Original post by Johnaman123
Anyone done the c1 exam yet?
everyone does it at similar times....the earliest I've heard it being done is 1pm but our school starts at 2.
However, you have to be inside the exam hall 10 mins prior to the exam starting so there is no way that anyone could do the exam and tell others about it
Original post by MVEMJSUNP
1.
Someone please help me so the general equation for carbonates reacting with acids is:
acid + metal carbonate → salt + water + carbon dioxide
so what is the salt calcium carbonate and an acid such as hydrochloric acid make. My brain has suddenly gone blank 
Calcium Chloride right?
Original post by CirqueDesRêves
Calcium Chloride right?
Wait what. Since when did we need to know that kinda stuff???
Original post by Rtdsv
Wait what. Since when did we need to know that kinda stuff???
I thought we didnt but its in the specification... if your doing higher
Original post by CirqueDesRêves
Calcium Chloride right?
Yes I get it now!!! thanks soo much. Good luck
This is what it says on the spec about Miller-Urey. Does it mean we have to know exactly how it works or just know about it?
Can someone kindly explain to me :
-extracting copper-rich ores, lower grade ores
-Fuels
-Cracking and polymerisation
-New polymers, waste and ethanol
-Oils
Thankyou any help would be much appreciated, I have been stuck on these for a while now xx
-extracting copper-rich ores, lower grade ores
-Fuels
-Cracking and polymerisation
-New polymers, waste and ethanol
-Oils
Thankyou any help would be much appreciated, I have been stuck on these for a while now xx
Is it fine to just write that:
When extracting copper from copper-rich ores, you use smelting in a large furnace, and then use electrolysis to collect pure coppper, however this can be very expensive to produce and alot of pollution is produced which causes damage to the environment.
When extracting copper from low grade copper ores, scientists have found 2 ways this can be done; Phtomining and bioleaching. Phytomining involves burning plants that have absorbed copper ions. Then electrolysis. displacement is used to collect pure copper.Bioleaching involves bacteria that feed on low grade ore, and they produce a waste product of copper ions (byproduct). Then electrolysis/displacement is used to purify the copper, ready to be used.
When extracting copper from copper-rich ores, you use smelting in a large furnace, and then use electrolysis to collect pure coppper, however this can be very expensive to produce and alot of pollution is produced which causes damage to the environment.
When extracting copper from low grade copper ores, scientists have found 2 ways this can be done; Phtomining and bioleaching. Phytomining involves burning plants that have absorbed copper ions. Then electrolysis. displacement is used to collect pure copper.Bioleaching involves bacteria that feed on low grade ore, and they produce a waste product of copper ions (byproduct). Then electrolysis/displacement is used to purify the copper, ready to be used.
Is there any way that anyone would know what's in the exam before doing it? Like if one school does it earlier?
Posted from TSR Mobile
Posted from TSR Mobile
Quick Reply
Related discussions
- A-level Exam Discussions 2024
- GCSE Exam Discussions 2024
- GCSE Exam Discussions 2023
- A Level Exam Discussions 2023
- GCSE Biology Study Group 2022-2023
- GCSE November Series 2023 Exam Discussions Hub
- A-level History Study Group 2022-2023
- WJEC GCSE Geography Unit 2 (3110U20 - 1) - 9th June 2023 [Exam Chat]
- AQA GCSE Biology Paper 2 Foundation Tier [9th June 2023] Exam Chat
- OCR GCSE Geography A Paper 2 (J383/02) - 9th June 2023 [Exam Chat]
- Over 500 questions on AQA Bio Unit 4 + Current Spec and old Spec papers + MS!
- Self-teaching Chemistry A-level (as a private candidate)?
- AQA GCSE Biology Paper 2 (Foundation Combined) 8464/2F - 9th June 2023 [Exam Chat]
- AQA A-Level Chemistry Paper 1 (7405/1) - 10th June 2024 [Exam Chat]
- AQA GCSE Combined Science Paper 2 Foundation (8464/C/2F) - 13th June 2023 [Exam Chat]
- Eduqas GCSE Geography Component 2 (C111U20-1; C112U20-1) - 9th June 2023 [Exam Chat]
- AQA GCSE Chemistry Paper 2 Foundation Triple (8462 2F) - 11th June 2024 [Exam Chat]
- GCSE 2023 Grade Boundaries (All Exam Boards)
- AQA A-Level Chemistry Paper 2 (7405/2) - 18th June 2024 [Exam Chat]
- Edexcel GCSE Design and Technology Component 1 (1DT0 1A-1F) - 19 Jun 2023 [Exam Chat]
Latest
Trending
Last reply 2 hours ago
AQA GCSE Chemistry Paper 1 Higher Tier Triple (8462 1H) - 17th May 2024 [Exam Chat]Last reply 1 day ago
AQA A-Level Chemistry Paper 2 (7405/2) - 18th June 2024 [Exam Chat]Last reply 3 days ago
OCR A-LEVEL CHEMISTRY A PAPER 2 (H432/02) - 21st June [Exam Chat]Last reply 1 week ago
AQA A-Level Chemistry Paper 1 (7405/1) - 10th June 2024 [Exam Chat]Last reply 2 weeks ago
OCR A-LEVEL CHEMISTRY PAPER 1 (H432/01) - 10th June [Exam Chat]Posted 2 weeks ago
AQA GCSE Chemistry Paper 1 (Foundation Combined) 8464/1F - 17th May 2024 [Exam Chat]Posted 2 weeks ago
AQA GCSE Chemistry Paper 2 (Foundation Combined) 8464/2F - 11th June 2024 [Exam Chat]Posted 3 weeks ago
AQA GCSE Chemistry Paper 2 Higher Tier Triple (8462 2H) - 11th June 2024 [Exam Chat]Posted 3 weeks ago
AQA GCSE Chemistry Paper 1 Foundation Triple (8462 1F) - 17th May 2024 [Exam Chat]Posted 4 weeks ago
Edexcel GCSE Combined Science Paper 5 Chem 2 Foundation - 11th June 2024 [Exam Chat]Posted 4 weeks ago
Edexcel GCSE Combined Science Paper 2 Chem 1 Foundation - 17th May 2024 [Exam Chat]Last reply 2 months ago
Edexcel GCSE Combined Sci Paper 2 Higher Tier (1SC0 2CH) - 13th Jun 2023 [Exam Chat]Trending
Last reply 2 hours ago
AQA GCSE Chemistry Paper 1 Higher Tier Triple (8462 1H) - 17th May 2024 [Exam Chat]Last reply 1 day ago
AQA A-Level Chemistry Paper 2 (7405/2) - 18th June 2024 [Exam Chat]Last reply 3 days ago
OCR A-LEVEL CHEMISTRY A PAPER 2 (H432/02) - 21st June [Exam Chat]Last reply 1 week ago
AQA A-Level Chemistry Paper 1 (7405/1) - 10th June 2024 [Exam Chat]Last reply 2 weeks ago
OCR A-LEVEL CHEMISTRY PAPER 1 (H432/01) - 10th June [Exam Chat]Posted 2 weeks ago
AQA GCSE Chemistry Paper 1 (Foundation Combined) 8464/1F - 17th May 2024 [Exam Chat]Posted 2 weeks ago
AQA GCSE Chemistry Paper 2 (Foundation Combined) 8464/2F - 11th June 2024 [Exam Chat]Posted 3 weeks ago
AQA GCSE Chemistry Paper 2 Higher Tier Triple (8462 2H) - 11th June 2024 [Exam Chat]Posted 3 weeks ago
AQA GCSE Chemistry Paper 1 Foundation Triple (8462 1F) - 17th May 2024 [Exam Chat]Posted 4 weeks ago
Edexcel GCSE Combined Science Paper 5 Chem 2 Foundation - 11th June 2024 [Exam Chat]Posted 4 weeks ago
Edexcel GCSE Combined Science Paper 2 Chem 1 Foundation - 17th May 2024 [Exam Chat]Last reply 2 months ago
Edexcel GCSE Combined Sci Paper 2 Higher Tier (1SC0 2CH) - 13th Jun 2023 [Exam Chat]
