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How to distingush organic layer and aqueous layer?
The organic layer is the one on top. Most organic solvents are less dense than
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664 views
please help me unscramble this word hippayen
Try these: http://www.ssynth.co.uk/~/anagram.html http://www.unscramble.net =)
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In a science demonstration, 4 to 6 plastic garbage bags are arranged under a 2 m by 2 m piece of plywood. A volunteer stands on
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1,003 views
Four men and four women are to be seated alternatively at a round table. In how many ways can this be done?
4 answers
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