Chemistry
Name:
(a) The most abundant element in the earth's crust.
(b) A chemical called oxygenated water.
(c) A metal highly resistant to rusting.
(d) A mixture of oxygen and carbon dioxide used for artificial respiration.
(e) Two substances from which oxygen can be obtained on a large scale.
(f) An oxide and a carbonate containing oxygen.
(g) Two substances which undergo rapid oxidation.
Oxygen
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Answer
(a) Oxygen
(b) Hydrogen peroxide (H2O2)
(c) Platinum
(d) Carbogen
(e) Air, water
(f) Sodium oxide (Na2O), Calcium carbonate (CaCO3)
(g) Sodium, carbon
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