Question

classify

air, seawater, sugar, salt solution, water,22 karat gold, calcium oxide, brass, hydrogen, smoke, salt, carbon dioxide, helium, nitrogen

into elements ,compounds, mixtures

Answer 1

Helium nitrogen salt are element .

water 22 carat gold calcium oxide brass are the compounds.

air seawater salt solution smoke are the mixtures .

Answer 2

compound air ,seawater ,sugar ,salt solution ,22 carat gold,calcium oxide,brass,smoke ,salt ,carbon dioxide

element helium , nitrogen, hydrogen