Explanation:
Anisotropy is the property of being directionally dependent, which implies different properties in different directions, as opposed to isotropyAn example of anisotropy is light coming through a polarizer. Another is wood, which is easier to split along its grain than across it.
Answer: <span>option C. Measure the four products separately, but using the
same scale each time.
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Justification:
Review the choices given one by one.
<span> A. Measure the product separately
on four different scales.
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</span><span>He should not include other variables in the experiment. Using four different scales migh give different results due to differences on the scales.
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</span><span>B. Measure all of the product together and
divide by four.
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</span><span>By doing this he will just obtain an average of the amount produced, but in this way he cannot determine the production individually (with each catalyst).
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</span><span>C. Measure the four products separately, but using the
same scale each time.
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</span><span>Indeed doing this he will be able to compare and rank the efficiency of each catalyst.
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</span><span>D. Measure the amount of sodium chloride in one
sample every 10 seconds.
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He cannot do this without affecting at the same time the evolution of the reaction, and of course by doing it on one sample only he will not be able to compare.
The compound form from propanoic acid and
dimethylamine is 3-(dimethylamino)propanoic acid. Propanoic acid is a liquid
carboxylic acid that has pungent and unpleasant smell resembling to body odor.
Its chemical formula is C2H5C00H. Moreover, dimethylamine is an organic
compound and a secondary amine that is colorless, flammable gas with an ammonia
like odor. Its chemical formula is (CH3)2NH.
The 2D structure is attached here.
The melting point would decrease
