Answer:
As settlers moved into the Northwest Territory in increasing numbers, friction with the Native Americans in the area increased. The federal government signed dozens of treaties with various Native American tribes, generally dealing with land or trade.
Explanation:
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Answer:
Your guess about why a person would join a cult is an example of a hypothesis.
Explanation:
A hypothesis is an assumption which needs to be tested in order to determine if it is true or not. It is the <em>basis for a theory</em> since once it is experimented, more assumptions and new information will come into account.
In this case, you have information about what a cult is and you develop a hypothesis about why people tend to join them.
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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Answer:
DNA
Explanation:
DNA is found in the nucleus of a cell.
The human genetic code is made of 50,000 genes.
Organisms store and transmit genetic information.
DNA has a double-helix structure.
Cells contain protein molecules.
