<span>Water is not a very good solvent. FALSE</span>
Answer:
A
Explanation:
i think A is correct answer because
A has 8 Electrons& Protons
and it's electronic configuration ns² np⁶.
which allow it to gain 2 electrons to reach stability.
Reaction of
Acyl Halides with
Grignard reagent results in the formation of
Ketones in first step. While in second step reaction of Grignard reagent with Ketones results in the formation of
Tertiary Alcohols.
If you want to
stop the reaction at
Ketone stage then you are required to use another
mild reactive organometallic compound. In our case we will use Organocuprates.
Organocuprates are also known as Gilman Reagents. These reagents does not add to ketones, aldehydes and esters but they can add to acid halides to produce Ketones.
1. The Hertzsprung-Russell diagram below shows how the brightness, surface temperature, and color of stars are related.stars would be
A. Barnard’s Star is less bright than the sun, has a surface temperature below 3,800 K, and is red.
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2. The Milky Way galaxy is described as a disk of stars orbiting a central point on the disk. Which of these best explains why people on Earth cannot see the entire shape of the Milky Way?
A. Earth is a part of this galaxy.
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3. A student learns that the sun is classified as a medium-size star and that many stars are much bigger and brighter. However, the student observes that other stars look very dim, even through a telescope.Why do other stars look much dimmer than the sun?
D. As light from other stars travels through space, it gets reflected.
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4. The sun is a mid-sized, main sequence star. What stage is next in the life cycle of the sun?
A. red giant
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5. In November 2013 an object orbiting the sun seemed to disappear behind the sun. When a satellite did not detect the object, astronomers thought that the object had been destroyed when it passed close to the sun. However, when another satellite detected a small, bright object with a fan-shaped tail, astronomers proposed that the object was not destroyed.What type of object were astronomers most likely observing?
A. A comet
Geologists use seismic waves to learn about and establish the structure of the Earth’s interior.
