What is a neutron?

Chemistry

2 answers:

Inessa05 [86]3 years ago

6 0

The second answer is the right one :)
Hope this helps

Pavlova-9 [17]3 years ago

5 0

B)
<span>
a subatomic particle with no electric charge, found in the nucleus of an atom </span>

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gladu [14]

$\\ \sf\longmapsto {}^{88}_{38}Sr^{2+}$

As 2 electrons are donated Hence the No of electrons =38-2=36

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As 3 electrons donated the no of electrons=23-3=20

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$\\ \sf\longmapsto {}^{112}_{48}$

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2 years ago

Is anybody good in Chemistry that can help me with this?

sesenic [268]

Answer:

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3 years ago

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kondor19780726 [428]

Answer:
The bottom layers of the rock could have formed before life occurred.

Explanation:
The bottom layers of the rock could have formed before life occurred because there is no fossil is present. If there is life at that time so the fossils are present at the bottom layer so the absence indicates that is no life present at that time. The bottom layer is older than the upper layer so that's why fossils of bacteria are found in the upper layer of the rock.

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C. Because bacterial fossils are found only in the upper layers, scientists can conclude that these bacteria evolved towards the end of Precambrian time.

There’s two different types of answers for this question so I just put both of them. Hope it helps : )

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A chemist performs the same tests on two white solids, A and B. The results are shown in the table below.

Roman55 [17]

Answer:

i'm not sure but mabey A?

Explanation:

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