Josh is designing a lab to separate a mixture of gravel, rocks, and sand. He looks at all the ways to separate a mixture but decides that one way would work the best on this mixture. What method should Josh use? Help ASAP A: Density
B: Sifting
C: Evaporation
D: Magnetic Attraction

Aballoon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon?

Ethanol (c2h5oh) is produced from the fermentation of sucrose in the presence of enzymes. c12h22o11(aq) + h2o(g) 4 c2h5oh(l) + 4 co2(g) determine the theoretical yield and the percent yields of ethanol if 680. g sucrose undergoes fermentation and 326.5 g ethanol is obtained. theoretical _ g _ percent %

Using data from seismic waves, geologists have learned that earth’s interior is made up of several