A chemical bond between two atoms results from a simultaneous

A. attraction by the protons for the neutrons

B. attraction by the two nuclei for the electrons

C. repulsion by the valence electrons of the atoms

D. repulsion by the protons in the two nuclei

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

Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .

In a ball-and-stick molecular model, what do the sticks represent?