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Cut a small sodium metal piece into two, watch it.a. What change occurred on the surface of sodium metal? b.Write one word for the process of this type of decomposition. c. Write down the equations for this. |
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Answer» a. After some time the cut piece of sodium will turn dull. b. Corrosion. c. 4Na(s) + O2 (g) → 2Na2O 2Na(s) + 2H2O(l) → 2NaOH(s) + H2(g) 2NaOH (s) + CO2 (g) → Na2CO3(s) + H2O(l) |
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