Answer:
<u>c. Laboratory experiments have a high degree of control and may create an artificial atmosphere.</u>
Explanation:
A limitation of laboratory experiments is that the environment in which the experiments take place, is very much calculated and controled. This means that it is artificial, and this wll affect the generalization of the findings considering a not cotroling environment such as a real environment.
Yes, toluene/water combination would be a good binary solvent system for a mixed recrystallization.
Because toluene is a fairly nonpolar chemical and water is polar, they will not dissolve together, making the combination of toluene and water an excellent binary solvent system.
<h3>What is mixed recrystallization?</h3>
- The substance to be crystallized is first dissolved in the smallest quantity of hot "soluble solvent," and then hot "insoluble solvent" is added dropwise until the solution becomes faintly hazy.
- This is how mixed recrystallization happens.
<h3>What is binary solvent?</h3>
- When synthesizing pharmaceuticals and drug precursors, binary solvent mixtures are employed as carriers in HPLC columns.
- For accurate and effective separation of the necessary pharmaceutical components, it is essential to precisely manage the mixture's composition.
- Water-based solutions of ethanol, sugar, and salt.
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They were not treated with respect by any means, they worked for long periods of time in harsh work conditions. This revealed that he really didn't care about some aspects of the well being of his workers. As long as his empire was protected, The First Emperor would kill anybody (including scholars) if he felt it was necessary to. Hope this helps.
Answer:
New England or Town Meetings were open public forums that promoted participation in the local government. Town meetings allowed citizens direct participation which is the purest form of democracy we can see in Ancient Greece. It ensures that all decisions are in the public interest since there are no parites and representatives. It differs slightly from Representative Town Meetings which has a long history in New England. Collier thought that this was the closest to the people and it involved the largest number of people. New England Town Meetings are still relevant today in a modernized form.
