1.Name the elements with the following symbols. Na ,W,Ba,Al,U,Ca,Zn,Ar 2.Mention the uses of the following compounds. Baking soda,Bleaching powder. 3.What does a chemical symbol represent ?
4.Give reasons for the following . Sodium and potassium are stored in kerosene . Aluminum foils are used to wrap food items. 5.Why wires cannot be drawn from materials such as stone or wood ?
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1
Answer:
Information about various chemical compounds and elements. ... 3, Na, Mg, Al, Si, P, S, Cl, Ar. 4, K, Ca, Sc, Ti, V, Cr, Mn, Fe , Co ...
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Answer:
Hg - Mercury
Pb - Lead
Au - Gold
Ag - Silver
Sn - Tin
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