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2 years ago

Name the layers of Earth starting at the crust and going in. Describe the composition of each layer.

1 answer:

7 0

The Crust is mostly made up of loose materials.

The Mantle is made of up of a thick solid rock substance.

The Outer Core is made of super heated liquid molten lava.

The Inner Core is believed to be solid ball of mostly iron, and nickel.

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Please help me out if your good at science:)ill mark brainliest if correct

ycow [4]

D. Helps diagnose health problems

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2 years ago

The gas molecules that make up air are in two rooms. The gas molecules in the kitchen are moving faster than the gas molecules i

kaheart [24]

D, I think.
Because the bedroom is closer to the windows where is cold and wind went through, while the kitchen is a hot spots.

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3 years ago

14. Which of the following alkanols on oxidation is most likely to yield the

kari74 [83]

Answer:

Explanation:

I think that is the ans but am not sure

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2 years ago

Read 2 more answers

BASED ON THE INFORMATION BELOW. CALCULATE THE MASS FOR ONE OF THESE ATOMS:

stepladder [879]

C = 12 g

O = 16 g

H = 1 g

<h3>Further explanation </h3>

Conservation of mass stated that

<em>In a closed system, the masses before and after the reaction are the same </em>

we can calculate the mass of each atom in the compound :

O in O₂ :

mass O₂ = 32

mass O = 32 : 2 = 16 g

H in H₂O

mass H₂O = 18

mass 2.H + mass O = 18

mass 2.H + 16 = 18

mass 2.H=2

mass H = 1 g

C in CH₄

mass CH₄ = 16

mass C + mass 4.H = 16

mass C + 4.1=16

mass C = 12 g

or we can use formula :

Mass of a single C :

$\tt =\dfrac{Ar~C}{MW~CO_2}\times mass~CO_2\\\\=\dfrac{12}{44}\times 44=12$

7 0

2 years ago

The amount of force needed to keep a 10 kg box moving at a constant

boyakko [2]

Answer:

Explanation:

Frictional force is a force that opposes the motion of body. It is because of friction that motion can be controlled and even walking is made possible.

Now, on a frictionless surface, there is no opposition to motion. Therefore, to keep the body moving there is no force required.

If surface lacks friction, motion will continue perpetually without any hinderance.

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2 years ago