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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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A theater director reinterprets a play by replacing its classical score with

cricket20 [7]

Answer:

The play will be more appealing to a younger audience.

Explanation:

A younger audience will more likely appreciate current pop hits rather than classical score.

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3 years ago

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James decided to do an experiment with a can of soda. He opened a 340 g can of soda and left it open for a day. The next day, he

amm1812

Answer:

A - The can was open and gases were released.

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3 years ago

If the chemist mistakenly makes 250 mL of solution instead of the 200 mL, what molar concentration of sodium nitrate will the ch

Evgesh-ka [11]

Answer:

0.120M is the concentration of the solution

Explanation:

<em>Assuming the mass of sodium nitrate dissolved was 2.552g</em>

<em />

Molar concentration is an unit of concentration widely used in chemsitry defined as the moles of solute (In this case NaNO3) in 1L of solution.

To find this question we must find the moles of NaNO3 in 2.552g. With this mass and the volume (250mL = 0.250L) we can find molar concentration as follows:

<em>Moles NaNO3 -Molar mass: 84.99g/mol-</em>

2.552g * (1mol / 84.99g) = 0.0300 moles NaNO3

<em>Molar concentration:</em>

0.0300 moles NaNO3 / 0.250L =

<h3>0.120M is the concentration of the solution</h3>

7 0

3 years ago

In a chemical equation, the new substance that is produced from a chemical reaction is called __________.

aleksandrvk [35]

Answer:

products

Explanation:

yeah the answer is product

6 0

3 years ago

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How many grams of magnesium oxide are needed to produce 264g of magnesium hydroxide

Archy [21]

If its one part magnesium and two parts hydroxide id say 88g of magnesium

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3 years ago