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MrRissso [65]
3 years ago
7

Is air a homogeneous heterogeneous mixture or substance

Chemistry
1 answer:
Olegator [25]3 years ago
5 0

Answer:

look at the explanation

Explanation:

The air that you breathe is a homogeneous mixture of oxygen, nitrogen, argon, and carbon dioxide, along with other elements in smaller amounts. Because each layer of the Earth's atmosphere has a different density, each layer of air is its own homogeneous mixture.

Hope this helps. :)

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For the n = 3 electron shell, which of the following quantum numbers are valid? Check all that apply.
stealth61 [152]

Answer:

The valid quantum numbers are l=0, l=-2 and l= 2.

Explanation:

Given that,

n = 3 electron shell

Suppose, the valid quantum numbers are

l = 3

m = 3

l = 0

m = –2

l = –1

m = 2

We know that,

The value of n = 3

Principle quantum number :

Then the principal quantum number is 3. Which is shows the M shell.

So, n = 3

Azimuthal quantum number :

The azimuthal quantum number is l.

l=0,1,2

Magnetic quantum number :

The magnetic quantum number is

m=-2,-1,0,1,2

Hence, The valid quantum numbers are l=0, l=-2 and l= 2.

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3 years ago
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Which statement accurately describes the origin and expansion of the universe? As the universe continues to expand, it gradually
dimulka [17.4K]

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3 years ago
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What happens when molecular compounds melt?
Harman [31]
Molecules arranged in regular pattern changes into an irregular pattern
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Is the formation of sulfur tetrafluoride monoxide endothermic or exothermic?
sleet_krkn [62]

endothermic means it absorbs energy while exothermic means it releases energy. remember this.

4 0
2 years ago
What happens to the composition of an atom to cause it to become positively or negatively charged?
cupoosta [38]
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6 0
3 years ago
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