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3 years ago

Which of these statements best explains why the soil around a volcanic region is fertile?

Chemistry

2 answers:

Troyanec [42]3 years ago

8 0

Answer: b. Volcanoes aid in the formation of new rocks, which help form new soils.

Explanation:

Volcanic eruption is a natural phenomena which involves the expulsion of hot magma and gases from the earth geosphere with drastic explosion due to generation of heat and pressure by the hot mantle. The hot magma get solidify on the surface of earth crust and becomes rocks. These rocks contains many inorganic minerals. If these rocks wither into soil can support the growth of plants because of the presence of the minerals.

Temka [501]3 years ago

4 0

Answer:

C. Particles released in the air by volcanoes fall to the ground and enrich the soil.

Explanation:

Got it right on the quiz

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Calculate the solubility of carbon dioxide in water at an atmospheric pressure of 0.400 atm (a typical value at high altitude).A

Bond [772]

Answer:

The molar solubility of carbon dioxide gas is $4.662\times 10^{-6} M$ .

Explanation:

Henry's law states that the amount of gas dissolved or molar solubility of gas is directly proportional to the partial pressure of the liquid.

To calculate the molar solubility, we use the equation given by Henry's law, which is:

$C_{CO_2}=K_H\times p_{liquid}$

where,

$K_H$ = Henry's constant = $3.50\times 10^{-2}mol/L.atm$

$p_{CO_2}$ = partial pressure of carbonated drink

$p_{CO_2}=p\times \chi_{CO_2}$

where = p = Total pressure = 0.400 atm

$\chi_{CO_2}$ = mole fraction of $CO_2=3.33\times 10^{-4}$

$p_{CO_2}=0.400 atm\times 3.33\times 10^{-4} =0.0001332 atm$

Putting values in above equation, we get:

$C_{CO_2}=3.5\times 10^{-2}mol/L.atm\times 0.0001332 atm\\\\C_{CO_2}=4.662\times 10^{-6} M$

Hence, the molar solubility of carbon dioxide gas is $4.662\times 10^{-6} M$ .

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3 years ago

A path that an electric current followos is a

Fed [463]

The flow of electricity is an electric current. The path that an electric currents floes is a circuit.

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Which best explains why sawdust burns more quickly than a block of wood of equal mass under the same conditions?

hammer [34]

More molecules in the sawdust can collide with oxygen molecules

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Can somebody plz just answer this 1 question thx!!!

coldgirl [10]

Answer:

cetacean i think thats the answer

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3 years ago

Some scientists believe that comets originate from the...

deff fn [24]

Answer:

Scientists believe that comets are the debris left from the solar nebula which condensed to form the Sun and planets in our solar system. Most comets are thought to originate in a huge cloud called the Oort Cloud. ... Comets follow a regular orbit around the Sun.

Hope this helps! :)

Explanation:

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3 years ago