16. Which of the following have the same electron configuration as each other? 1. Na+1 and Ar
2. Na+1 and Ne
3. Na and Ne
4. Na and Na+1

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

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

What does the symbol (–hfus) indicate in a phase change?