Is Magnesium hydroxide Mg(OH)2 or 2MgOH
Since the Mg ion has a 2+ charge & the OH ion has a 1- charge. Then when they are combined together they form a neutral charge.
The next step is to out the charge of Mg & OH to their correct sides. Mg is the anion of the compound which tells that it is to be out on the left side of the formula. Such as MgOH, however the charges must be put into place.
The charge of 2+ would go to the right while the 1- would go to the right. Since 1 is a very common number in Chemistry we ignore that and just put the number greater than 1 with parentheses.
Overall the formula would yield Mg(OH)2
The next step is to out the charge of Mg & OH to their correct sides. Mg is the anion of the compound which tells that it is to be out on the left side of the formula. Such as MgOH, however the charges must be put into place.
The charge of 2+ would go to the right while the 1- would go to the right. Since 1 is a very common number in Chemistry we ignore that and just put the number greater than 1 with parentheses.
Overall the formula would yield Mg(OH)2