When sugar crystals dissolve in water the level of water does not rise appreciably why?

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?