Questions

General question30 Apr 2020

Why does soapy water stay hot longer than fresh water.

by Karl Presser

• Views 342
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Theoretical question04 Apr 2020

Could a uv light source be inserted into a lung to kill exposed Coronavirus without damaging the lung or causing cancer?

by Philip Shorten

• Views 212
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Experimental question28 Mar 2020

Suppose you inject mouse embryonic stem cells under the skin of an immunosuppressed rat. Assuming that the cells survive and divide, what do you expect to observe over time? Explain your reasoning. - Answered

by Maram Balkhair

• Views 245
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Experimental question23 Mar 2020

How would scientists test a new fruit for edibility?

by Layla Gatlin

• Views 327
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General question12 Mar 2020

Question about making hand sanitizer with 70% isopropal alcohol

• Views 267
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General question02 Mar 2020

If fresh water is important and limited in the south west US and the ocean is rising why do they let all the fresh water from the misssissipi river go out to ocean?

by Ron Oertel

• Views 254
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Experimental question18 Jan 2020

Currently I have isolated water soluble polysaccharide from plant sample. Now I wish to know its monosaccharide composition. What types of instrumentation gives much vivid picture (a) Ion chromatography, (b) GC-FID, (C) GC-MS - Answered

by Laxman Singh

• Views 304
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General question10 Nov 2019

The relative atomic mass of lead is 207.2 Explain why it is a decimal and not a whole number.

by Abdiqadir Isa

• Views 1978
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General question08 Oct 2019

How can molecular clocks be 'calibrated'?

by John Mallon

• Views 457
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Experimental question15 Jul 2019

How has Humanity caused climate change and the severe need for biodiversity conservation

by NENE

• Views 402
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