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>
Answer:
What are we supposed to do please make Ur question clear and repost
Answer:
A space ship was roaming out of this world and the pilot was a down to earth person who knew a lot about rocket science. Another pilot was mainpulative and starry-eyed and wanted to find something that only happens once a blue moon and when he did find it he was over the moon
Explanation:
A meter is 3 feet long and is used to measer stuff in the metric system
Answer:
MAKE NO CHANGE
Explanation:
There is nothing wrong with the punctuation of the sentence we are analyzing here. First, let's take a look at the colon. When we need to introduce a long list of items, a colon should be used right before the list begins. That is exactly what we have here. The speaker placed a colon before listing the locations to be visited.
Now, we can usually separate the items in a list with commas. However, in this case, not only do we have long names for each location, but we also have the "location of the location". That is, a certain museum is located in a certain city, and to separate the name of the museum from the name of the city, we must use a comma already. For that reason, when we name another location, a different one, we should use a semicolon instead of a comma.
