What happens when HCl gas is passed through a saturated PbCl2 solution? More PbCl2 dissolves because chloride ions are added to the solution.
More PbCl2 dissolves because hydrogen ions are added to the solution.
Some PbCl2 precipitates because chloride ions are added to the solution.
Some PbCl2 precipitates because hydrogen ions are added to the solution.

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1

What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures

What is the chemical formula for dihydrogen monoxide