The answer to this question is:
true
1) aluminum
2) copper
3) white paper
A good extraction solvent should have a strong solubilizing capability for the compound of interest, it should be immiscible or only weakly misciblewith the matrix solvent ( the first solution or mixture containing the compound from its natural source, e.g., water/ether. water/ chloroform, etc. If possible the extraction solvent should be non-flammable, non-toxic or of low toxicity, reasonably volatile, and of low eco-impact. Inexpensive and available, of high purity , and shelf stable. If one is determining the compound of interest by UV/Vis spectrophotometry or fluorescence, the solvent should have extremely low absobance or emission at the wavelength of analysis
• high solubility for the solute and low solubility for the carrier liquid.
• density difference vs. the carrier liquid greater than 150 kg/m. ...
• mid-level interfacial tension (5–30 dyne/cm)
• high resistance to thermal degradation.
Adhesion water sticking to a foreign substance. cohesion is water sticking to itself.
<h2>How would populations be impacted by climate change from increased greenhouse gases?</h2>
<h3><em><u>A)</u> Areas that experience droughts would experience increased precipitation.</em></h3>
B) There would be an increase in yield for crops from expanding drought areas.
C) Growing seasons would be altered for crops.
D) Water shortages would no longer be an issue.
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