Why do plants need to obtain carbon atoms?
a. plants use carbon to build glucose during photosynthesis.
b. carbon is their food.
c. they use carbon to breathe.
d. plants don't need carbon.

What is the empirical formula of vanadium 1 oxide given that 20.38 grams of vandium combines with oxygen to form 23.58 grams of the oxide

0.2348 grams of pbcl2 used to form 44.0 ml of solution.

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.