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AQA GCSE CHEMISTRY Unit 1 Question Game!

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Explain the benefits of job specialisation to a clothing manufacturer.
Judging by the questions on the Biology paper I am pretty certain this will be asked in the exam.
Reply 81
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IAmAnTroll
OP
4
Original post by t10r
Saturated - has only single bonds, higher melting point than unsaturated
Unsaturated - has double bonds

Anything else?


What is the difference between Bioleaching and Phytomining?
Reply 82
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t10r
13
Original post by Snake_God
Explain the benefits of job specialisation to a clothing manufacturer.
Judging by the questions on the Biology paper I am pretty certain this will be asked in the exam.


Basically, you go out and get pissed with a bunch of 15 year olds and drunk rats. Also, don't forget to do it as an independent company and make sure to spot all of the patterns on the snails' shells.
Reply 83
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Flammae
5
Original post by Jamie Vardy
Explain the processes of:

a) bioleaching
b) phytomining


Bioleaching: Bacteria uses energy from the bond between copper sulphide to separate the compound, and therefore separates the copper from the ore.

Phytoming:The soil contains copper. The copper builds up in the leaves of the plant. The leaves are dried and burnt, and the copper is taken from the ash.
Reply 84
Avatar for 4dam
4dam
5
Original post by Snake_God
Explain the benefits of job specialisation to a clothing manufacturer.
Judging by the questions on the Biology paper I am pretty certain this will be asked in the exam.


Thank god you were joking, I s**t myself for a second
Reply 85
Avatar for t10r
t10r
13
Original post by IAmAnTroll
What is the difference between Bioleaching and Phytomining?


Bioleaching involves getting copper from lowgrade ores using bacteria.
Phytomining involves getting copper from lowgrade ores using plants.

Can't think of anything else, sorry :/
Original post by Jamie Vardy
Explain the processes of:
a0 bioleaching
b) phytomining


* Grow plants in a field containing copper compounds
* The plants will absorb copper compounds from the soil
* Burn the plants
* Collect the ash which will have lots of copper compounds inside
* Obtain pure copper by purifying the ash

I think this is right?

What is bioleaching?
Reply 87
Avatar for 4dam
4dam
5
Original post by Jamie Vardy
Explain the processes of:

a) bioleaching
b) phytomining


Bioleaching - copper sulphate solution passed over bacteria that take it in, break it down and excrete copper which needs to be purified using electrolysis.

Phytomining - Plants grown on soil containing low-grade copper ore, take in the copper ions and store them in their stem and leaves. The plants are then burnt and the ash (containing copper oxide) is purified using electrolysis.

Both get copper for low-grade ores but require electrolysis to purify the copper.
Original post by IAmAnTroll
Like we did for Biology, let's answer the question the person above you asks and then ask a question that the person underneath you has to answer!

Start me off!


surface temperature of pluto is -200 degrees : propane has boiling point of -220 , melting point of -180, : wud propane form oceans : on pluto
Original post by 4dam
Thank god you were joking, I s**t myself for a second


lol :smile:
yeah its just a joke about the Biology paper feeling like a business exam!
Original post by t10r
Basically, you go out and get pissed with a bunch of 15 year olds and drunk rats. Also, don't forget to do it as an independent company and make sure to spot all of the patterns on the snails' shells.


Exactly right! Full marks.
Reply 91
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IAmAnTroll
OP
4
Vegetable oil can be extracted by
1) Crushing and pressing the nuts, seeds or fruits. You crush and press it, remove the water and other impurities.
2) Distillation of nuts, seeds or oils with water mixed in. Then you remove the oil from the water afterwards
Reply 92
Avatar for t10r
t10r
13
Original post by Snake_God
* Grow plants in a field containing copper compounds
* The plants will absorb copper compounds from the soil
* Burn the plants
* Collect the ash which will have lots of copper compounds inside
* Obtain pure copper by purifying the ash

I think this is right?

What is bioleaching?


Bioleaching is when we use bacteria to get copper from lowgrade ores as opposed to the traditional method being reduction with carbon from high grade ores as the copper is running out.
The bacteria is grown on lowgrade ores and it gets energy from the bond between copper and sulfur in copper sulfide, it then uses that energy to separate the copper into a copper sulfate solution. This copper sulfate solution can then be purified using scrap iron to displace the copper or electrolysis.
Reply 93
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IAmAnTroll
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4
Original post by ihatehannah
surface temperature of pluto is -200 degrees : propane has boiling point of -220 , melting point of -180, : wud propane form oceans : on pluto


I think so, if the melting point is -180 and the temperate is -200 degrees then it would have a low enough temp to melt . melt means turns into liquid so yea
What is the process of hydration of ethene:
State the conditions required and the product produced
Reply 95
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IAmAnTroll
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4
What is hardening / hydrogenation?
What is a mixture, and no I don't mean a mixture of alcoholic beverages. Taking that into account that may also come up...
Original post by t10r
Bioleaching is when we use bacteria to get copper from lowgrade ores as opposed to the traditional method being reduction with carbon from high grade ores as the copper is running out.
The bacteria is grown on lowgrade ores and it gets energy from the bond between copper and sulfur in copper sulfide, it then uses that energy to separate the copper into a copper sulfate solution. This copper sulfate solution can then be purified using scrap iron to displace the copper or electrolysis.



Correct :borat: Correct
Give two examples of alloys (2) :smile:
Original post by IAmAnTroll
What is hardening / hydrogenation?

The process of adding hydrogen in the presence of a nickel catalyst and at 60 degrees

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