Which task most likely involves a calculation that uses moles? measuring a sugar sample on a balance
counting the number of jelly beans in a jar
determining the number of atoms in a jar of liquid
tinding the rate of expansion of a gas-filled balloon

What is the mass of each element in a 324.8 sample of co2

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.

Which fact represents evidence for the big bang theory?