mlath2016
mlath2016
14-02-2017
Chemistry
contestada
the question is in the file :)
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NiobeChastain
NiobeChastain
14-02-2017
3 and 1 are metals but not 2 as metals are not insulators or 4 as it is a gas at room temp
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cjgguy
cjgguy
14-02-2017
Elements 1 and 4 are metals i believe that its refering to iron (1) and copper (4)
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