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dimulka [17.4K]
3 years ago
15

Explain what is earthquakes and volcanoes

Chemistry
2 answers:
baherus [9]3 years ago
8 0

Answer:

Earthquakes are when the earth starts to movers and usually cracks open.

Volcanoes are big like of like spouts that go from under the ground to as tall as a small mountain. When erupted the will spit out lava and magma from the top.

Explanation:

Hope this Helps!

:)

Harrizon [31]3 years ago
6 0

Explanation:

There is no ostensible relation between earthquakes and volcanoes though there are zones on earth where both natural...

• Volcanoes result from openings in the surface of the earth that brings along hot magma (molten rocks) with its wake

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enyata [817]

Answer 1) : The density of the hot air inside the balloon can be found out by using ideal gas equation;


PV = nRT;


As n is number of moles and in gases, number of moles along with mass per mole is equal to the density of the gas.


If the moles in the gas are more the density will be more.


here, density (ρ) = mass (m) / volume (V); substituting in the ideal gas equation we get,

ρ = mP / RT


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Here according to the formula because T(hot air) >T(cold air),


So, the density of hot air greater than the density of cold air.


The relationship between the ρ (h) = ρ(c) X \frac{T_{h}}{T_{c}}

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Answer:mixture

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The radioactivity due to carbon-14 measured in a piece of a wood from an ancient site was found to produce 20 counts per minute
ss7ja [257]

Answer:

The answer is "17200 years".

Explanation:

Given:

A = 20 \ \frac{counts}{minute}\\\\A_{o} = 160\ \frac{counts}{minute}

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  Group 5A can lose either 5 or 3 electrons giving a charge of +5 or +3

The number of lost electron confers the stability on the configuration.

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