Chemical Names and Formulas
What are the formulas for the compounds formed from these pairs of ions?
Ba2+Cl-= BaCI2, Ag+ I-= AgI, Ca2+S2-= Cas, K+Br-= Kbr, Al3+O2-=Al2O3, Fe2+O2-= FeO.
How many electrons does the neutral atom gain or lose when each ion forms?
Cr3+= loses 3, p3-= gains 3, Li+= loses 1, Ca2+= loses 2, CI-= gains 1, O2-= gains 2.
What are the formulas for these binary ionic compounds?
Magnesium oxide= MgO, tin(II) fluoride=SnF2, potassium iodide=KI, aluminum chloride=AlCl3,sodium sulfide= Na2S.
Name the following binary ionic compounds.
MnO2=manganese(IV) oxide, Li3N=Lithium nitride, CaCI2=Calcium chloride, SrBr2=Strontium bromide, NiCI2=Nickel(II)chloride, K2S=Potassium sulfide, CuCI2= Copper(II)chloride, SnCI4= 10(II)chloride.
What is the charge on the ion typically formed by each element?
Oxygen (-2), iodine (-1), sodium (+1), aluminum (+3), nickel (+2), magnesium (+2).
Name each ion. Identify each as a cation or an anion.
Sn2+=10 (II) cation, Co3+= cobalt (III) cation , Br-=Bromide anion, K+= potassium cation, H-=anion, Mn2+=cation.
What are the formulas for the following ionic compounds?
Sodium phosphate= Na3PO4, Magnesium sulfate= MgSO4.