Why is it important to know the charges of the elements involved when doing chemical nomenclature?

Afamily is one another name for a group on the table of elements.

What diagram shows the ionic compound of magnesium oxide

Imagine that twenty i.u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?