Which of the following has the largest influence on compound polarity during chromatography?
<span>D. Hydrogen bonding, since it is a strong intermolecular force </span>
<span>2. What is the proper sequence of events to follow after eluting a TLC plate? </span>
A. Dry the plate, visualize the plate, develop the plate
<span>3. Safety glasses should be worn </span>
<span>B. at ALL times in the lab, to avoid any accidents that might happen.</span>
<span>4. Disposable gloves are strongly discouraged in the laboratory because </span>
<span>A. aqueous chemicals may pass rapidly through the glove and cause harm to the skin, there are different type of gloves suitable to the substances you are working on</span>
5. If you should get any laboratory chemicals on your skin,
<span>B. wash the affected area immediately with cold water and inform your TA. </span><span> </span>
<span>6. The distribution constant </span>
<span>D. has a characteristic value for a compound in a particular solvent system. </span>
<span>7. What is the most common absorbent in column chromatography? </span>
<span>C. silica gel </span>
<span>8. A compound that moves quickly through a stationary phase will have</span>
D. A large Rf value.
<span>9. Venting a separatory funnel should be done by</span>
<span>A. inverting and then opening the stop wingspan after shaking. </span>
<span>10. Addition of salt during an extraction</span>
<span>E. improves extraction of the compound from the aqueous to the organic phase.</span>
I don't see a poem, but I can tell you how to determine the meter of a poem.
The meter of a poem is determined by the last word in a line.
For example,
Roses are red, A
Violets are blue, B
sugar is sweet, C
And so are you. B
You rhymes with blue so so they are both blue.
Tell me if you need more info:D
I think its °while she was doing her homework°
Answer:
Angelou had thought her grandmother was mistaken in identifying her mother on the train because she had never seen her mother dressed nice and look pretty.
Explanation:
