Unit 2: Nomenclature

Question 1

molecular compounds

Answer 1

composed of atoms held together in molecules by covalent bonds and nonmetals.

Question 2

covalent bonds

Answer 2

bonds between two atoms created by physically sharing one or more pair of electrons.

Question 3

binary molecular compounds

Answer 3

compounds consisting of two metals (ex: S02)

Question 4

binary ionic compounds

Answer 4

compounds consisting of cations (usually metal) and anions (usually nonmetal).

Question 5

polyatomic ions

Answer 5

charged groups of two or more atoms joined together by covalent bonds (ex: SO4^2–, OH^–).

Question 6

oxyanions

Answer 6

polyatomic anions containing oxygen in combination with one or more other element (ex: acetate (C3H3O2^-), nitrate (NO3^-).

Question 7

binary acids

Answer 7

contain hydrogen and a monoatomic anion (ex: Cl^-, S^2-); most commonly contain halogens (ex: HCl, HBr). Named by using “hydro-“ + halogen base name + “-ic” + “acid” (ex: HBr = hydrobromic acid).