This chart shows four atoms, labeled W, X, Y, and Z. These atoms can combine with each other to form molecules. Which atoms could join together to form a molecule of an element?

W and X
X and Y
W and Z
Y and Z

What is the temperature of one mole of helium gas at stp?

Geothermal energy for industrial use is available almost anywhere. a.true b.false

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?