Which scientist discovered that the atomic number, rather than the atomic weight, is more responsible for the properties of an element? (tragically this scientist died soon after as a soldier in wwi.) 1. millikin 2. moseley 3. st. augustine 4. rutherford 5. chadwick?

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

Based on its chemical properties, identify the position of each chemical family on the periodic table.

What is the vapor pressure of a solution with a benzene to octane?