What is the oxidation number of chromium in cr2o7 4-? a. +3 b. +4 c. +5 d. +6

Which statement is best described as a atom

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at