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son4ous [18]
3 years ago
15

List and describe the four layers of the Earth.

Chemistry
2 answers:
ella [17]3 years ago
4 0
Starting at the center, Earth is composed of four distinct layers. They are, from deepest to shallowest, the inner core, the outer core, the mantle and the crust
Sauron [17]3 years ago
4 0

Answer:

Crust- thinest layer; the part we live on

Mantle- just beneath the crust; consists of magma

Outer Core- liquid metal; super hot; thickest layer (i think)

Inner Core- solid metal; SUPER compressed; hottest layer

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3 years ago
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Can I please Get Help with this question ‍♂️ ?
Nitella [24]

Answer:

Mg(NO4)2 is 180.3 g/mol

Explanation:

First find the substance formula.

Magnesium Nitrate.

Magnesium is a +2 charge.

Nitrate is a -1 charge.

So to balance the chemical formula,

We need 1 magnesium atom for every nitrate atom.

2(1) + 1(-2) = 0

So the substance formula is Mg(NO4)2.

Now find the molar mass of Mg(NO4)2.

Mg = 24.3 amu

N = 14.0 amu

O = 16.0 amu

They are three nitrogen and twelve oxygen atoms.

So you do this: 24.3 + 14.0(2) + 16.0(8) = 180.3 g/mol

So the molar is mass is 180.3 g/mol.

The final answer is Mg(NO4)2 is 180.3 g/mol

Hope it helped!

7 0
3 years ago
Which equations are in standard form? Check all that apply
aliya0001 [1]

Answer:

2x+3y=-6

4x+3y=12

3x-y=5

5x+3y=1

Explanation:

standard form: ax + by = C

4 0
3 years ago
Write an equation for the reaction that takes place during the laboratory preparation of dry hydrogen​
olya-2409 [2.1K]

Answer:

Zn+2HCl→ZnCl2+H2

Explanation:

Hydrogen gas is prepared in the laboratory by reacting dilute HCl with granulated zinc.

8 0
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Which choice below represents a negative impact that chemistry has on society?
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Explanation:

I got it right :))

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