What is the mass of 5.25 mol of iron (Fe)?

a. 0.094g
b. 293g
c. 0.0940g
d. 293.2g

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

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.