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Chemistry, 23.06.2019 00:30
When did stem cell research become known ? who discovered stem cell? what experiments or studies have been conducted so far?
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Chemistry, 23.06.2019 05:00
If 15 drops of ethanol from a medicine dropper weigh 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? density of ethanol is ethanol is 0.80g/ml.
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Chemistry, 23.06.2019 06:30
Which of these describes how heat is transferred by convection* a. sunlight travels through space without the aid of fluids or solids. b. warm air rises and takes the heat with it, eventually, it cools and sinks c. air at the equator rises and sinks at the poles. d. air molecules touch the warm ground, heating them up *not conduction
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Chemistry, 23.06.2019 16:30
What does the law of increasing costs say? a. as you make more and more of one good or service, you will also make more and more of another. b.as you make less and less of one good or service, you will also make less and less another. c.as you make more and more of one good or service, you will make less and less of another. d.there is no change in production levels when you shift from one good or service to another
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A sample of fluorine-18 is found to have an activity of 980 disintegrations per second (dps). After...
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