In a disproportionation reaction, the disproportionate substance
a. has exactly one oxidation state.
b. has exactly two oxidation states.
c. has at least three oxidation states.
d. has either one or two oxidation states.

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

Particles vibrate in a rigid structure and do not move relative to their neighbors.

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?