The distinction between protostomes and deuterostomes is based on differences in their

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.

How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2

In in , is to a 28.4-g (1-oz)−23.0 °c to −1.0 °c?