Write the formula for each of the following compounds that contain polyatomic ions. Be sure to enclose the polyatomic ion in parentheses if more than one such ion is needed to balance the oppositely charged ions. a. ammonium acetate b. ferrous hydroxide c. cobalt(III) carbonate d. barium dichromate e. lead(II) sulfate f. potassium dihydrogen phosphate g. lithium peroxide h. zinc chlorate
Chapter3-Notes Formula: An elementisasubstance that ismade up of onlyonetype of atom(each ofwhich has the same numberof protons). Acompound is asubstance thatcontains atoms ofmore than oneelement. A puresubstancecan beeither an element oracompound. Ex: Ex 2: GoldorAu is anelement. Hydrogen Peroxidewillbecreated -H2O2 It can be madeupof acontinuousnetworkof atomsall held togetherby strongbonds, or it can exist as individualgroupsof atomsthat form identical particles called molecules, in which the atomsare held togetherby strongbondsbut themolecules interact with each otheronly weakly. Ex: O3orOzoneis a typeofmolecule A molecular formulalists thenumberof atomsof each element that are in a single m
