All High School Chemistry Resources
Example Questions
Example Question #21 : Naming Compounds
What is the correct name for ?
Perchloric acid
None of the answer choices are correct
Chloric acid
Chlorous acid
Hydrochloric acid
Perchloric acid
consists of a ion bonded to a ion, which is a perchlorate ion. Hence, the name of the ion's corresponding acid would be perchloric acid.
Example Question #22 : Naming Compounds
What is the name of the following compound: ?
calcium carbonate
calcium monocarbon trioxide
calcium trioxide
calcium carbonite
calcium carbon
calcium carbonate
In this case, we have an ionic compound. Calcium is bound ionically to the polyatomic ion, carbonate . Thus, the name of this compound is calcium carbonate.
Example Question #23 : Naming Compounds
What is the name for the following compound: ?
Iron(I) nitrate
Iron(II) nitrate
Iron(I) nitrite
Iron(II) nitrite
Iron nitrate
Iron(II) nitrate
This is an ionic compound because there is a metal (iron) bound to a nonmetal (the polyatomic ion nitrate). Iron, is a transition metal, which means it can take on multiple different charges. To find the charge of iron in this compound we must not that the compound as a whole is neutral. Also we must know the charge on the nitrate ion, , is negative one. To balance the two nitrate ions with one iron atom, the iron must carry a positive two charge. In naming ionic compounds with transition metals, we must use Roman numerals to indicate the charge on the metal. Thus the name of this compound is iron(II) nitrate.
Example Question #22 : Naming Compounds
Choose the correct chemical formula for lead (II) chloride.
is the correct answer because it takes two chloride ions to balance the positive two charge on the lead atom. lead (II) refers to the ion of lead with a charge instead of Lead (IV) which refers to the ion with a charge. Note that roman numerals are used with elements that can form more than one cation (generally transition metals).