Answer:
I believe the answer is Pineal Melatonin or just Melatonin
Answer:
D.
They came because the Europeans forced them to leave Africa.
Explanation:
Sadly, many Africans were taken away from Africa because they were a part of the slave trade. Europeans either captured slaves or traded for them when an African tribe or town had prisoners of war.
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.
Learn more about recrystallization here:
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Potential rate of return on investments and the level of risk are directly correlated. In general, if the level of risk of investment increases, the amount of potential return increases as well. As investors move up on the 'pyramid of investment risk' the chances of losing increase along with the amount of potential return.
Answer:
The correct answer is - T or True.
Explanation:
Stalemate is the condition or a situation where no one wins clearly or can not be determined who is the winner. By definition "stalemate is a situation in which no side achieves a decisive victory".
For instance, In a debate there are two sides, or team A and B, both presented their arguments with excellence that judges can not decide who is the winner this situation would be called a stalemate.
