Why are prefixes not used in naming ionic compounds?A.The number of ions is not fixed in a compound.B.A roman numeral is used instead of a prefix.C.Two ions can combine in only one combination.D.A subscript follows each name instead of a prefix.SUBMITarrow_backPREVIOUS

Why are prefixes used in naming covalent compounds?A.The atoms can have different numbers of valence electrons.B.The same atoms can combine in more than one ratio.C.Oxidation states of the atoms are identified with prefixes.D.The prefixes identify the only way the atoms can combine.

Which of the following is used to indicate the number of each type of atom in the naming of a covalent molecule?A.A prefixB.A suffixC.A roman numeralD.A subscriptSUBMITarrow_backPREVIOUS

In the chemical formula for an ionic compound, which item is written first?Athe chargeBnegative ionCpositive ion

Under Ionic or Covalent write in a "i" for ionic and a "c" for covalent.  The next two blanks under name write the name of the compound. For the name of the compound. If the metal requires a Roman numeral, then make sure you put the name of the cation(metal) and the Roman numerals without a space in between them and use parenthesis around the roman numeral, like this:   iron(II) or copper(I) Formula PbSO4ionic or covalent Name

Now you be writing the formulas from the name. For the formula of the compound.  When writing the formulas remember you are not able to use subscripts so write the compound as you would on paper but without writing subscripts.  for example ammonium carbonate would be made from thecation  NH4+1 and the anion CO3-2Formula = (NH4)2CO3Two nonmetals don't have ions, you will just be writing the formulas.  For example carbon dioxide would be CO2 name potassium oxalateionic or covalent formula