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PolarNik [594]
3 years ago
13

This infectious disease requires a special mask for protection

Chemistry
2 answers:
11111nata11111 [884]3 years ago
6 0

Answer:

the black plague

Explanation:

Yuliya22 [10]3 years ago
6 0

Answer:

no

Explanation:

becuase the only way you need to have a special mask is if it was constantly changing

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Diatomic gases such as H2(g), O2(g), and N2(g) contain ________ bonds.
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Diatomic gases contain covalent bond
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Mrs. Jacobson is pushing a fridge to the right with a force of 100 N. The force pushing it
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Answer:

A

Explanation:

Let's illustrate this; see the attachment.

We see that Mrs. Jacobson is pushing to the right with a force of 100 N and there is another opposite force pushing with a force of 15 N. Since these are in opposite directions, we can say that the force opposite to Mrs. Jacobson is pushing the fridge -15 N to the right (instead of 15 N to the left).

The net force would then be:

100 N + (-15 N) = 85 N to the right

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3 years ago
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3 years ago
Electrons are found in energy levels around the nucleus of an atom. Energy levels can also be called ""shells."" The energy leve
melamori03 [73]

Answer:

<u>The first electronic shell or energy level, having n= 1, called the K shell, is the closest to the nucleus.</u>

Explanation:

In an atom, the sub atomic particles called electrons, revolve around the nucleus of the given atom at different <em>energy levels</em>, called <em>shells</em>.

The energy levels or the electronic shells are denoted by the <em>principal quantum number</em>  <em>(n)</em> and has the following values n = 1, 2, 3, 4, 5, 6, 7; <em>from the innermost shell to the outermost.</em>

The electron shells are also labelled by the alphabets, K, L, M, N, O, P, and Q, <em>from the innermost shell to the outermost.</em>

<u><em>Thus the first electronic shell having n= 1, called K shell, is the lowest energy level and is present closest to the nucleus.</em></u>

<u><em>Whereas, the last electronic shell having n =7, called Q shell, is the highest energy level and is farthest from the nucleus.</em></u><u> </u>

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3 years ago
Please help me. How do I do ideal gas law?
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