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zzz [600]
3 years ago
13

Scientific knowledge results from the interaction of scientists who are investigating natural phenomena. Which of these BEST des

cribes how a scientific explanation becomes widely accepted?
Group of answer choices

DNA is not necessary for an organism to reproduce.

Organisms create their own DNA sequence that is not like their parents.

. DNA contains genes that hold specific traits for an organism.

A. DNA is an exact copy from parent to offspring.
Chemistry
1 answer:
seraphim [82]3 years ago
6 0

Answer:

5ywhxhghghghfhffgffgffg

Explanation:

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Rank the following atoms by number of valence electrons. Rank from most to fewest valence electrons. To rank items as equivalent
Fed [463]

To count the number of valence electrons we look at the electronic configuration and add the electrons form the electronic shell with the highest principal quantum number.

Rb: [Kr] 5s¹ - 1 valence electron

Xe: [Kr] 5s² 4d¹⁰ 5p⁶ - 8 valence electrons

Sb: [Kr] 5s² 4d¹⁰ 5p³ - 5 valence electrons

I:    [Kr] 5s² 4d¹⁰ 5p⁵ - 7 valence electrons

In:  [Kr] 5s² 4d¹⁰ 5p¹ - 3 valence electrons

Rank from most to fewest valence electrons:

Xe > I > Sb > In > Rb

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The atomic number is always equal to the atomic mass true false
kifflom [539]

Answer:

<h3>A neutral (no charge) particle found in the nucleus of an atom. ... The atomic number of an atom is equal to the number of protons or neutrons? false. The atomic number is always equal to the atomic mass.</h3>
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When trying to clean muddy, dirty river water, which method would work
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Identify the intermediate leads to the major product for the reaction of 2-methyl-2-butene with hydrogen bromide in the presence
pishuonlain [190]

Answer:

II

Explanation:

We must have a good idea of the fact that there are two mechanisms that come into play when we are discussing about the addition of hydrogen halides to alkenes. The first is the ionic mechanism and the second is the radical mechanism.

The ionic mechanism is accounted for by the Markovnikov rule while the radical mechanism occurs in the presence of peroxides and is generally referred to as anti Markovnikov  addition.

The intermediate in anti Markovnikov  addition involves the most stable radical, in this case, it is a tertiary radical as shown in the images attached. The most stable radical is II hence it leads to the major product shown in the other image.

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CAN SOMEONE HELP PLEASE!!!!
miv72 [106K]

Answer: The Hubble

Explanation:

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