Which statement describes one of the main principles of Dalton’s atomic theory? Atoms of the same element are identical. Atoms of the same element are identical. , ,

Elements of the same atom are different. Elements of the same atom are different. , ,

Atoms of the same element are different. Atoms of the same element are different. , ,

Elements of the same atom are identical.

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

Calculate the ratio of h+ ions to oh– ions at a ph = 6. 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 = 6. are they the same? why or why not? record your explanation in table a. what is the concentration of h+ ions at a ph = 6? mol/l what is the concentration of oh– ions at a ph = 6? mol/l what is the ratio of h+ ions to oh– ions at a ph = 6? : 1

Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.