Ralph and Sheila are at a construction site and they are stacking bricks. The diagram above shows the bricks before they touch. Use the information in the diagram to answer the question. After the bricks have been touching for a while, whose top brick will be cooler?

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

Which atom or ion is the largest? 0 a. 0 0 0 0 e. li

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.