7. Which of the following is required to solve any stoichiometry problem? a. grams of each reactant
b. mole ratio
c. Avogadro's number
d. molar mass
e none of the above

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.