A sample of gas occupies a volume of $2.50\,L$ at a pressure of $1.20\,atm$ and a temperature of $300\,K$. If the volume is compressed to $1.00\,L$ while the temperature is increased to $400\,K$, what is the new pressure of the gas?
2Multiple Choice
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Determine the oxidation number of chromium in the dichromate ion, $Cr_2O_7^{2-}$
3Multiple Choice
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Identify the functional group present in the molecule $CH_3CH_2CHO$.
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