Multiple ChoiceWhich of the following diagrams correctly represents the ionic compound magnesium oxide?19views
Multiple ChoiceWhich set of chemical name and chemical formula for the same compound is correct?21views
Multiple ChoiceWhich of the following is the correct chemical formula for nickel(II) chloride?26views
Multiple ChoiceWhich of the following is the correct formula for the compound formed by calcium ions and chloride ions?24views