Adescription of an observed
phenomenon that holds true every time
it's tested under a given set of conditions
a collective human effort to
comprehend, or better understand, the
history of the natural world and how it
works, through physical evidence
collected via observations
a proposed explanation for a
narrow set of phenomena
a scientific explanation formulated
based on known facts and repeated
testing

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