If you have an actual yield of 20 grams and a theoretical yield of 40 grams, what is the percent yield? 20%

40%

50%

200%

If a plot weight (in g) vs. volume (in ml) for a metal gave the equation y= 13.41x and r^2=0.9981 what is the density of the metal?

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?

Amixture with the same composition throughout is!