When choosing a respirator for your job, you must conduct a test. A) Weight
B) Breathing
C) Fit
D) Practice

Gymnast always perform on padded mats. how does the mats protect the gymnast

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

Particles vibrate in a rigid structure and do not move relative to their neighbors.