When magnesium ions form compounds with bromide ions, how many magnesium ion(s) are needed to form a neutral compound?

1 Answer
Jan 20, 2017

Answer:

Well magnesium forms a #Mg^(2+)# ion...........

Explanation:

and bromine forms a #Br^(-)# ion...........

And so, if these ions are to make music together, and form a NEUTRAL ionic solid, we need 2 equiv of anion, and 1 equiv of metal ion:

#Mg^(2+) + 2Br^(-) rarr MgBr_2darr#

All I have done here is to conserve mass and charge. Are they conserved?