2.The element amongst common salt, carbon dioxide and hydrogen is

Hydrogen is a pure element, the other two are compounds.

Common table salt is sodium chloride (NaCl) and consists of the

elements sodium and chlorine. Carbon dioxide (CO2), as the name

implies, consists of the elements carbon and oxygen. Hydrogen (H2)

is a diatomic element.

? you expect us to answer this? ? this is your schoolwork, i don't think we can with this, i think it would considering being

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.