According to the reaction below, what mass of oxygen gas is required to produce 22 g of carbon dioxide?

C(s) + O2(g) --> CO2(g)

A.) 16 g

B.) 4.0 g

C.) 8.0 g

D.) 32 g

E.) 12 g

Which statements describe polyatomic ions? check all that apply. polyatomic ions have many charges. polyatomic ions have one overall charge. polyatomic ions repel other ions to form ionic bonds. polyatomic ions attract other ions to form ionic bonds. polyatomic ions are made up of only one type of atom. polyatomic ions are made up of two or more types of atoms.

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?