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Chemistry, 16.12.2020 04:20 Dracopaul03
Your lab group added a small amount of chromium chloride (CrCI2) to a test tube of sodium hydroxide (NaOH). At first nothing happened in the test tube, but after a few seconds a white cloudiness appeared. after 3 minuets, the test tube was full of a white substance. Did a chemical reaction take place, yes or no? What evidence or lack of evidence do you have to support your answer?
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Chemistry, 22.06.2019 06:30
The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 β naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams
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Your lab group added a small amount of chromium chloride (CrCI2) to a test tube of sodium hydroxide...
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