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SODIUM- EXPERIMENT - Coggle Diagram
SODIUM- EXPERIMENT
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Procedure
- cut piece of sodium metal in half
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- check reaction with water
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- use phenolphthalein to see what you have made
Conclusion
- oxygen layer is obstacle for shyne on sodium
- metals of the first group become softer as we go down the PSE
- Sodium in water formed hydrogen gas
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- water and sodium produced sodium hydroxide
Observations
- sodium metal when cut- shiny (easy to cut through)
- sodium metal floated on water and relised gas
- sodium gas extinguished the candle
- phenolphthalein in the water in which sodium was melting, turned purple-pink color.
Equation
2Na(s) + 2H2O(l) 
2NaOH (aq) + H2(g)
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