November 27, 2015

Homework Help: chemistry - ASAP

Posted by Smarth on Tuesday, September 27, 2011 at 6:40pm.

An unknown element reacts with bromine to give bromide, MBr3. If 2.809g of the unknown element gives 27.765grams of MBr3, what is the element? ( give the symbol )

I dont understand the M in the MBr3...can someoen please help me with this question ASAP

thanks a lot

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