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kicyunya [14]
3 years ago
14

what is the scientific name for the layer of gas that surrounds the earth A. hydrosphere B. biosphere C. atmosphere D. lithosphe

re
Chemistry
2 answers:
horsena [70]3 years ago
7 0

Answer:

hydro

Explanation: hydrogen

Marat540 [252]3 years ago
7 0

Answer:

C. Atmosphere

Explanation:

First, let’s define each answer choice.

Hydrosphere: all of the water on Earth

Biosphere: the global ecosystem where organisms live

Atmosphere: the envelope of gases around the planet

Lithosphere: the outermost part of the Earth( the crust and upper mantle)

The question asks us to find the scientific name for the layer of gas that surrounds the Earth. The best choice is C. Atmosphere.

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Problem PageQuestion A chemistry student needs 10.0g of dimethyl sulfoxide for an experiment. By consulting the CRC Handbook of
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9.09cm3

Explanation:

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Density = Mass/volume.

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Answer : The partial pressure of O_2 is, 222.93 torr

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                           2N_2O_5(g)\rightarrow 4NO_2(g)+O_2(g)

Initial pressure   760                0             0

At eqm.             (760-2x)            4x            x

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a - x = pressure of N_2O_5 at equilibrium = (760-2x) torr

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215=\frac{2.303}{4.11\times 10^{-3}}\log\frac{760}{760-2x}

x=222.93torr

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