State your observation when:
i. a piece of sodium is added to water.
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The sodium metal gives bubbles of a gas and generates a large amount of heat. This heat causes the sodium to melt to give a silvery globule which darts about on the surface of the water giving out a large amount of heat energy.
The gas that is formed when lit burns with a characteristic pop sound.
When phenolphthalein indicator is added, it turns deep pink immediately indicating that the solution is highly alkaline.
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Answer:
sodium metal reacts with water to form sodium hydroxide and hydrogen gas is produced during the process
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