A student was holding a metal rod to a candle flame. After a while he noticed that his hand was getting hot. a. Radiation
b. Conduction
c. Convection
d. Transformation

0.09 moles of sodium sulfate in 12 ml of solution

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.

What is the most important factor in determining climates.