# Phenolphthalein + sodium carbonate and phenolphthalein + sodium bicarbonate [closed]

What would the word equations be for the following two situations?

Initially $$\ce{Na2CO3}$$ and $$\ce{NaHCO3}$$ were present as 2 unknown powders, dissolved in water, and phenolphthalein was added to identify them.

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Phenolphthalein is colorless for acidic solution, viz. upto $$\mathrm{p}H=8$$, and for $$\mathrm{p}H>8$$, it shows pink color. $$\ce{NaHCO3}$$ is an amphoteric salt with $$\mathrm{p}H$$ value close to 8, so phenolphthalein will be colorless. But $$\ce{Na2CO3}$$ being a basic salt, solution will show pink color.