"Sir Walter Raleigh founded the colony of Virginia after receiving a <em>charter</em> from Queen Elizabeth I."
The way in which new scientific instruments improved the accuracy of observation is they made objects more precise.
<h3>What is a Scientific Instrument?</h3>
This refers to the use of tools for the purposes of scientific research and analysis to get answers about a particular phenomenon.
Hence, we can see that instruments like the microscope and telescope, brought things that were far away or too small into focus so that they could be easily observed and studied.
Read more about microscopes here:
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Answer:
1)The Native Americans have always had a deep respect for the land.
2)settlers died due to starvation or from Indian Attacks
Explanation:
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Answer:
See explanation
Explanation:
Biphenyl is formed by the reaction of two phenyl radicals. It is a major impurity ( undesired product) that is formed when some amount of phenyl bromide (bromobenzene) doesn't react solid magnesium in the formation of the Gignard reagent. In other words, it is formed when there is a coupling reaction between Grignard reagent (Grignard reagent acts as a strong nucleophile) and bromobenzene
Biphenyl is usually produces when the concentration of bromobenzene is high and when there is increase in temperature during reaction. To minimize the amount of biphenyl, it is best to add the bromobenzene solution slowly so that the reaction boils gently, since the reaction is favorable at low temperatures.
