When heated, calcium sulfite (CaSO3) decomposes to form calcium oxide and
sulfur dioxide. Write an equation for this
reaction.
SEM

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

Nonpoint source pollution is difficult to control because it

When the mercury level in a barometer decreases that atmospheric pressure has