1)WRITE CHEMICAL EQUATION (i) sodium metal is added to ethanoic acid. (ii) ethanoic acid reacts with a dilute solution of sodium hydroxide. 2) Wat is the principle of reversibility of light? show that the incident ray of light is parallel to the emergent ray of light wen light falls obliquely on a side of a rectangular slab.
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1) a)2CH3COOH+2Na=2CH3COONa+H2 (sodium ethanoate) b) CH3COOH+NaOH=CH3COONA+H2O
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