Generally, how do atomic masses vary throughout the periodic table of the elements? They increase from left to right and top to bottom.
O They increase from left to right and bottom to top.
O They increase from right to left and top to bottom.
O They increase from right to left and bottom to top.

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

How many moles of water are created if 3 moles of hydrogen react completely with excess oxygen?

Which statement is true according to the kinetic theory? a. molecules of different gases with the same mass and temperature always have the same average density. b. molecules of different gases with the same mass and temperature always have the same average volume. c. molecules of different gases with the same mass and temperature always have the same pressure. d. molecules of different gases with the same mass and temperature always have the same molecular mass. e. molecules of different gases with the same mass and temperature always have the same average kinetic energy.