Which milligram quantity contains a total of four significant figures
a) 3,100
b) 30,001
c) 3,010
d) 0.3010

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.

Name 3 types of energy you see being used as you look around a classroom

Consider the lewis structure for ch4 methane is this molecule polar or nonpolar