If a large marshmallow has a volume of 3 in cubed, and density of .242 g/cm cubed, how much would it weigh in grams

How many grams of mgbr2 are needed to produce 75g or metal?

Which of the four hypothetical substances you investigated would be most harmful to living organisms? 50 points!

How does a sample of helium at 15 degree celsius compare to a sample of helium at 215 k? a) the helium at 15 degrees celsius has a higher average kinetic energy that the sample at 215 k. b) the helium at 15 degrees celsius has lower nuclear energy that the sample at 215 k. c) the helium at 15 degrees celsius has slower- moving atoms that the sample at 215 k. d) the helium at 15 degrees celsius has smaller atoms than the sample at 215 k.