Using your knowledge geologic processes, explain why there are fertile, nutrient-rich solls on and surrounding volcanoes

Chemistry

1 answer:

poizon [28]2 years ago

3 0

Answer:

Hey, I will try my best

so as you know volcanos can be very destructive and cause mass death and deforestation. but nature needs volcanos because they are part of a cycle. The lava that comes from volcanos can feed various plants which will start to grow after an eruption. these plants will process the lava rock into food which feeds other plants. and soon enough you have a whole forest after all the lava rock has been processed.

spiky bob your answerer

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2 The substance has a mass of 0.50 kg.

katen-ka-za [31]

Answer:

68000J/kg

Explanation:

Given parameters:

Mass of the substance = 0.5kg

Quantity of heat transferred to the body = 34000J

Unknown:

Specific latent heat of fusion = ?

Solution:

The specific latent heat is usually involve in phase changes;

H = mL

H is the quantity of heat supplied

m is the mass

L is the specific latent heat

Insert the parameters and solve;

34000 = 0.5 x L

L = $\frac{34000}{0.5}$ = 68000J/kg

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2 years ago

Why is there not a corresponding drop in ionization energies between Bi and Po in the sixth period as N and O?

Stels [109]

Answer:

See explanation

Explanation:

According to the Journal of Chemical Education, Volume 80, No.8 (2003); "The first ionization energy of bismuth appears to be anomalous......It has been claimed that spin– orbit coupling by the Russell–Saunders scheme would lower the ground state of Bi+ ..."

However, the involvement of d and f orbitals in Bi and Po implies that the outermost orbitals are poorly screened hence the drop between nitrogen and oxygen is not observed between Bi and Po.

The same argument could be extended to explain the reason why there not a corresponding drop between Ba and Tl is the sixth period even though they are in the same group as Be and B.

3 0

2 years ago

Mrs. Jacobson is pushing a fridge to the right with a force of 100 N. The force pushing it

alex41 [277]

Answer:

Explanation:

Let's illustrate this; see the attachment.

We see that Mrs. Jacobson is pushing to the right with a force of 100 N and there is another opposite force pushing with a force of 15 N. Since these are in opposite directions, we can say that the force opposite to Mrs. Jacobson is pushing the fridge -15 N to the right (instead of 15 N to the left).

The net force would then be:

100 N + (-15 N) = 85 N to the right

The answer is A.