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3 years ago

This figure (Figure 1)shows a container that is sealed at the top

Chemistry

1 answer:

guajiro [1.7K]3 years ago

7 0

I'm pretty sure the answer is 0.833 atm.

Hope I helped! <3

-cara

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The process of generating electricity from dams and nuclear power plants is very different, but some of the energy transformatio

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2 years ago

(b)

mixas84 [53]

Answer:

Group 18th

Explanation:

The group 18th of periodic table which is composed of Noble gases mainly was missing from the Mendeleev's periodic table. The reason for this is that Noble gases are least reactive, therefore, it was difficult to predict such elements which do not react with other elements.

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3 years ago

A mole of cars stacked end to end would stretch back and forth across the United States how many times? Measured length of 1 car

vekshin1

Answer:

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Explanation:

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3 years ago

Why is Jupiter so much larger than earth ? Check all that apply .

Elina [12.6K]

Answer: Its so much larger because it has a core.

Explanation:

Jupiter is proven to have a core, the planet still could have formed that core through disk instability. Enough dust could have collected and cemented together in the dense gas to form a core many times larger than the size of the Earth

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3 years ago

1. In general, the nucleus of a small atom is stable. Therefore, over very short distances, such as those in a small nucleus,

postnew [5]

<h3>1. <u>Answer;</u></h3>

a. the strong nuclear force is much greater than the electric force.

<h3><u>Explanation</u>;</h3>

<em><u>For an atom to be stable it means it has enough amount of binding energy to hold its nucleus together permanently. </u></em>
Therefore, <em><u>an unstable atom lacks enough amount of binding energy to hold its nucleus permanently and thus undergoes decay to achieve stability. Unstable atoms are therefore referred to being radioactive.</u></em>
Small atoms are stable; <u>this is because they have equal number of protons and neutrons and thus the protons and neutrons fill up energy levels while maximizing the strong force binding the nucleus together. </u>

<h3>9.<u> Answer;</u></h3>

b. change into a different element altogether.

Uranium-238 undergoes alpha decay. Therefore, uranium-238 will <em><u>change into a different element altogether</u></em>.

<h3><u> Explanation;</u></h3>

Unstable atoms undergo radioactive decay in order to achieve stability of their nucleus.
<em><u>Uranium-238 is an example of such atom, which may undergo decay to achieve stability.</u></em>
<em><u>Alpha decay is one of the types of decays,</u></em> others being beta decay and gamma decay. <em><u>In alpha decay the radioactive isotope undergoes decay such that its mass number is decreased by four and its atomic number is decreased by two.</u></em>
Therefore, <em><u>Uranium-238 undergoes alpha decay to form a different element whose mass number is 234 and atomic number is 90, known as thorium-234. </u></em>

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3 years ago

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