Now let's say you are in charge of catering for a business lunch that 150 people will be attending. You want to order trays of small sandwiches, and
you assume that each person will eat 2 small sandwiches. You know that
each tray will have 60 sandwiches. How many trays do you need to order?
Show your work.

Aaspirin has a density of 1.40 g/cm^3 what is the volume in cubic centimeters of a tablet weighing 320 mg?

What is the percentage of hydrogen in c2h4

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space