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    (Original post by MaxHSloan)
    Does anyone know if we need to know the catalyst for reacting steam with ethene?
    I'm pretty sure we don't need to know
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    What are the products of incomplete combustion?
    • Thread Starter
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    (Original post by Jamie Vardy)
    How is air separated into gases?
    Fractional distillation of air.

    Gases in the air have different boiling points so can be separated from the air. The air is cooled to below -200 degrees celsius and fed into the column. Nitrogen is separated from oxygen and argon . Further distillation can be done to separate oxygen from argon in their pure form.
    Needs to be separated to below -200 degrees celsius because boiling points of nitrogen is 195 and -183 is oxygen and -185 is argon.
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    (Original post by IAmAnTroll)
    What are the two ways ethanol can be produced?
    1. Fermentation of ethene
    2. Hydration of ethene
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    What proof is there that our continents were once all joined together?
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    (Original post by Adamtoo)
    What are the products of incomplete combustion?
    Carbon monoxide
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    FULL ANSWER:
    1. Air is filtered to remove the dust.
    2. The air is cooled to -200 degrees celsius..
    3. The water vapour condenses and is removed.
    4. The CO2 (should be a small 2) freezes and is removed.
    5. The liquefied air enters the column and is heated slowly.
    6. The remaining gases are separated by fractional distillation.
    7. Argon and oxygen have similar boiling points and so come out together; they are therefore separated using another column.
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    (Original post by 4dam)
    Carbon monoxide
    Are you good at chem? If so please could we go through some things, soo stuck for tomorrow
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    (Original post by MaxHSloan)
    What proof is there that our continents were once all joined together?
    Continental drift theory, continents fit together like jigsaw puzzle and similar fossils found on opposite side of the Atlantic ocean
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    (Original post by EmmanuellaUwaifo)
    Are you good at chem? If so please could we go through some things, soo stuck for tomorrow
    Dunno how good I am, what do you want to go through, I may need the help too.
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    (Original post by MaxHSloan)
    What proof is there that our continents were once all joined together?
    The similarities between the fossils and animals on in the borders of one continent to another. Also, the similarities in the shape of the continents that fit in almost like a "jigsaw".
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    What can be added to a polymer to make it biodegradable?
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    Through thermal decomposition, hydrocarbons are passed over a catalyst.
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    (Original post by Charlie223)
    What can be added to a polymer to make it biodegradable?
    Cornstarch
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    60°C and a Nickel Catalyst
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    (Original post by 4dam)
    Dunno how good I am, what do you want to go through, I may need the help too.
    Well...
    The metals topic, I feel like if I get a question on that tomorrow I will not know how to answer it.
    Ethanol and Crude oils
    and the gases in the atmosphere topic
    :/ Sorry
    Is there anything you dont understand
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    What will happen if we release a bunch of drunk rats and male mosquitoes into the atmosphere?
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    What are the advantages and disadvantages of bioleaching and phytomining?
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    (Original post by 2gee)
    60°C and a Nickel Catalyst
    Describe the Miller-Urey experiment,
    . Must give gasses used
    . Condition the gasses were in
    . What was made and why there was a problem.
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    (Original post by EmmanuellaUwaifo)
    Well...
    The metals topic, I feel like if I get a question on that tomorrow I will not know how to answer it.
    Ethanol and Crude oils
    and the gases in the atmosphere topic
    :/ Sorry
    Is there anything you don't understand
    Nope, I'm happy with them, is there anything specific you don't understand or just a specific thing?
 
 
 
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