Question

Which of the following materials fall in the category of pure substances. Also, classify them as elements and compounds.

Ice, Milk, Iron, Hydrochloric acid, Calcium oxide, Mercury, Brick, Wood, Air, Sodium, Soil, Sugar solution, Silver, Calcium carbonate, Tin, Silicon, Carbon dioxide, Blood, Soap and Coal.

Answer 1

Answer:

Pure substances:

Elements = Iron, Mercury, Sodium, SIlver

Compunds = Everything else

Answer 2

Answer:

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