MatthewPlays
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#1
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#1
What did you put for the questions???
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muntilol
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#2
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I'm confused about the amount of magnesium oxide question in the C2 paper
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Rubato
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#3
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I got 2 tonnes.
You divide the mass of whatever was given by its relative formula mass then multiply it by the other ones formula mass. (sorry I don't remember the order of the question)
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bencs25
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I also got 2 tonnes.
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PinkyQT
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#5
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I got 2.008 whatever and I wrote that instead of 2 on the answer bit and then I put 2 to 1 dp, will I get the mark
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bencs25
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#6
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Could you show the calculations you did to get that...?
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¡Muy bien!
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#7
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What did everyone put for the question about iron sulfate in unit 3? I put it was copper sulfate cause in test one it was a blue precipitate.
For the question about the haber process did u circle 400?
2 reason why governments want to change to hydrogen fuel cells?
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Rubato
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#8
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(Original post by AlphaNick)
1.2 * (40 / 24) = 2.0 tonnes
What? My method works too as it got the right answer and was taught to me by my teacher -_-
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AnimeNerd36
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(Original post by dana_kirsh)
What did everyone put for the question about iron sulfate in unit 3? I put it was copper sulfate cause in test one it was a blue precipitate.
For the question about the haber process did u circle 400?
2 reason why governments want to change to hydrogen fuel cells?
Copper sulphate is correct. And for the Haber Process I circled 100, because it was when the highest one, A, started to plateau or whatever.
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Rubato
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#10
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I put 400 because I thought you increase the pressure in the haber process to increase the yield
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AnimeNerd36
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#11
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In that case I've probably messed up my Chemistry exam then. :/
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