Question 1
Choose the INCORRECT oxidation state.
◦ C is 0 in H
2CO
◦ S is +4 in H
2SO
3 ◦ C is +2 in HCOOH
◦ Fe is +2 in Fe
2O
3 ◦ Mn is +7 in KMnO
4 Question 2
Choose the INCORRECT statement.
◦ A molecule is a group of bonded atoms that exist as an entity.
◦ Ionic compounds result from combinations of metals and nonmetals.
◦ An anion is a positive ion.
◦ The empirical formula is the simplest formula of the ratio of atoms.
◦ The molecular formula is the listing of the atoms in an actual molecule.