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OpenStudy (anonymous):
Please check my answers on 3 questions for a chem practice packet ill give medal :)
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OpenStudy (anonymous):
@FirstFrostByte can u help
OpenStudy (anonymous):
Sorry I don't know this.
OpenStudy (anonymous):
oh ok
OpenStudy (anonymous):
9 is ic 15 is oxygen and 21 is Al must be above H in th activity series
OpenStudy (anonymous):
Are you positive not to doubt u
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OpenStudy (anonymous):
its fine and yes because 9 I just remember 15 oxygn is the only one thats a gas and 21 is because they could not react if H were above Al in the actitivty series so the precipitate is irrelevant if they cannot react
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