select one:
Chemistry, 23.11.2019 00:31, miguelturner
Butter is melted in a pan. which of the following is true about the change?
select one:
a. it is a physical change that absorbs energy.
b. it is a physical change that releases energy.
c. it is a chemical change for which there is no change in energy.
d. it is a chemical change that absorbs energy.
Answers: 2
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Chemistry, 22.06.2019 21:50, SoccerAllStar2
Liquid from a brewery fermentation contains 10% ethanol and 90% water. part of the fermentation product (50,000 kg/h) is pumped to a distillation column on the factory site. under current operating conditions, a distillate of 45% ethanol and 55% water is produced from the top of the column at a rate of one-tenth that of the feed. what is the composition of the waste "bottoms" from the still?
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Butter is melted in a pan. which of the following is true about the change?
select one:
select one:
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