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Statistics is the study of the collection, analysi...
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Asked 3 months ago
I have a question here to ask.. Active yeast is placed in a test tube and connected by a delivery tube to a second test tube containing hydrogencarbonate indicator The colour of the indicator was red at the begining but after 15 min's it turns to yellow. Can anyone explain the reason for this change? i know that hydrogencarbonate is red in neut...