Suppose the total volume of sand on the beach is 1,278m. What will the volume be after 24 hours of erosion?

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.

Arectangle has a diagonal 20 inches long that forms angles of 60 and 30 with the sides. find the perimeter of the rectangle. for geometry

The molar mass of nickel(ni) is 58.7 g/mol. how many moles are in an 88 gram sample of nickel?