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ozzi
3 years ago
11

Is my answer correct? Or no

Chemistry
2 answers:
fgiga [73]3 years ago
3 0

yes your answer corecct

Crazy boy [7]3 years ago
3 0

Answer:

Yes, It is correct-Option (4)

Explanation:

Soil is naturally formed due to the breakdown of rocks. These are loose sediments and are distributed abundantly on the earth's surface. It covers the upper portion of rock layers.

Soil is considered to be non-renewable resources because the rocks are weathered and eroded over tens and hundreds of years, which is quite a long time. It takes a long time for regeneration.

Renewable resources are those resources that can be re-established in a short period of time, within a few years, and are easily available. For example, wind energy, water, and solar energy.

Since it takes more amount of time to form soil, almost hundreds of years, so the soil is considered a non-renewable resource. Thus, the given condition is correct.

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A solution has a pOH of 8.20. What is the concentration of H3O+?
Sedbober [7]

Answer:

.000001585

Explanation:

14-8.20=5.8

10^-5.8 = H3O+

- Hope this helped! Please let me know if you need further explanation.

7 0
3 years ago
1. An atom of an elephant has atomic mass of 39 and has number of neutrons as 20 calculate protons number.
r-ruslan [8.4K]

Answer:

See Explanation

Explanation:

1) Let us recall that;

Mass number = number of protons + number of neutrons

Where;

Number of protons = ?

Number of neutrons =20

Mass number =39

Number of protons = mass number - number of neutrons

Mass of protons =39 - 20= 19 protons

2) Atomic number = 13

Number of neutrons =14

Then the mass number =13 +14 =27

The symbol of the element is 27X13

The number of protons= the number of electrons =13

The atomic number is the same as the proton number =13

5 0
3 years ago
Look at the Recording station detector on the upper left side of the Gizmo. What happens when the seismic waves hit the recordin
Ne4ueva [31]

Answer:

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Explanation:

4 0
3 years ago
The most loosely held electrons in an atom are called
ELEN [110]
The most loosely held electrons in an atom are called valence electrons.
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Explanation:

4 0
3 years ago
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