Which of these formulas could be only an empirical formula, only a molecular formula, either a molecular or an empirical formula? a. SO2
b. CO
c. B4H10
d. C4H4O2

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering

Which of the following are sources of revenue for media companies? a. direct sales to producers b. advertising and subscriptions c. online purchase d. capital investments