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    Trying to prove a hypothesis with strontium nitrate and sodium carbonate. The more strontium nitrate the more strontium carbonate precipitate. I need secondary evidence to prove the hypothesis is correct so if anyone has them it would be sound if I could have them but it doesnt specifically have to be with strontium
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    (Original post by Big Lee)
    Trying to prove a hypothesis with strontium nitrate and sodium carbonate. The more strontium nitrate the more strontium carbonate precipitate. I need secondary evidence to prove the hypothesis is correct so if anyone has them it would be sound if I could have them but it doesnt specifically have to be with strontium
    Providing there is an excess of sodium carbonate this is not a very interesting experimental hypothesis ...

    .. it is akin to saying "the more money I have the more beer I can buy".
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    Yes I admit it is a rubbish hypothesis that is kinda obvious but im forced to do that hypothesis for my gcse chemistry
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    It's less about "secondary evidence", than it is a core principle of chemistry.
    Talk about moles if you must, but that's about as secondary as anything will get.
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    nah secondary evidence online is a petty thing but it will give a few extra marks. Talking about moles is complicated as if I have moles in the experiment, it says I am not doing the experiment properly but not having moles means I have less to discuss
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    Hi I'm doing the same experiment as well for my assessment and need some secondary evidence too
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    have you done your gcse controlled assessment yet? do you remember anything you wrote?
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    I need secondary evidence for the same experiment. It doesn't necessarily have to be strontium nitrate, just a precipitate reaction with sodium carbonate.
 
 
 
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