Chemistry, 09.07.2019 15:40 morganamandro9437
A3.677g sample of nac2h3o2 x 3h2o is heated until all the water molecules are gone. nac2h3o2 has mass of 2.216g left in the test tube. determine the ratio of moles of water to moles of nac2h3o2 in the original compound.
Answers: 1
Chemistry, 21.06.2019 16:00, WhiteWinterRose
What is the chemical formula of the following compound
Answers: 3
Chemistry, 21.06.2019 20:30, nmadrigal
In a laboratory experiment, a fermenting aqueous solution of glucose and yeast produces carbon dioxide gas and ethanol. the solution was heated by burning natural gas in a bunsen burner to distill the ethanol that formed in the flask. during the distillation, the ethanol evaporated and then condensed in the receiving flask. the flame of the burner was kept too close to the bottom of the flask and some of the glucose decomposed into a black carbon deposit on the inside of the flask. during this experiment the following changes occurred. which of these changes involved a physical change and not a chemical change? check all that apply. 1-condensation of ethanol 2-evaporation of ethanol 3- formation of carbon dioxide gas from glucose burning of natural gas 4-formation of ethanol from glucose by yeast 5-formation of a carbon deposit inside the flask
Answers: 2
A3.677g sample of nac2h3o2 x 3h2o is heated until all the water molecules are gone. nac2h3o2 has mas...
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