Chemistry, 16.03.2022 23:00 giajramosp2r5da
A beaker contains a mixture of sand and salt. A student adds water to dissolve the salt. Which processes can be used to separate out the sand and salt?(1 point)
distillation to collect both the sand and the salt
distillation to collect both the sand and the salt
filtration to collect both the sand and the salt
filtration to collect both the sand and the salt
filtration to collect the sand and distillation to collect the salt
filtration to collect the sand and distillation to collect the salt
distillation to collect the sand and filtration to collect the salt
distillation to collect the sand and filtration to collect the salt
Answers: 1
Chemistry, 21.06.2019 20:30
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
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Chemistry, 21.06.2019 22:10
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Chemistry, 22.06.2019 04:30
The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.
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A beaker contains a mixture of sand and salt. A student adds water to dissolve the salt. Which proce...
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