1. Which type of telescope is most useful for detecting a star that emits very long

1 answer:

5 0

Which type of telescope is most useful for detecting a star that emits very long electromagnetic waves?

A. a radio telescope B. an X-ray telescope C. an optical telescope D. a gamma ray telescope
A.)a radio telescope

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Ozone (O 3) is made of three atoms of oxygen. It is _

kykrilka [37]

An element I think maybe

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2 years ago

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Draw the structure of the bromohydrin formed when (Z)-3-hexene reacts with Br2/H2O. Use the wedge/hash bond tools to indicate st

Ipatiy [6.2K]

Answer:

(3R,4R)-4-bromohexan-3-ol

Explanation:

In this case, we have reaction called halohydrin formation. This is a markovnikov reaction with anti configuration. Therefore the halogen in this case "Br" and the "OH" must have different configurations. Additionally, in this molecule both carbons have the same substitution, so the "OH" can go in any carbon.

Finally, in the product we will have chiral carbons, so we have to find the absolute configuration for each carbon. On carbon 3 we will have an "R" configuration on carbon 4 we will have also an "R" configuration. (See figure 1)

I hope it helps!

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3 years ago

Is carbon dioxide a reactant

Harman [31]

Answer: No

Explanation: Reactants are the substances present at the beginning of a chemical reaction. In the burning of natural gas, for example, methane (CH4) and oxygen (O2) are the reactants in the chemical reaction. Products are the substances formed by a chemical reaction. In the burning of natural gas, carbon dioxide (CO2) and water (H2O) are the products formed by the reaction.

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2 years ago

When 3-iodo-3-ethylpentane is heated in methanol, the major organic product is an __________________ that is generated through a

katovenus [111]

Answer:

Ether

SN1 mechanism

Explanation:

The nucleophile in this reaction is CH3OH. It is a poor nucleopile. We already know that a poor nucleophile reacting with a tertiary alkyl halide often leads to the substitution product as the major product.

Also, the iodide ion is a good leaving group. This makes the SN1 substitution more likely yielding the ether as the major product as shown in the image attached.

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2 years ago

Um cilindro de êmbolo contém certa quantidade de um gas nobre a 27°C, o qual exerce pressão de 1,5 atm e ocupa volume de 6 litro

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Answer:

45c

Explanation:

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2 years ago