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Lady_Fox [76]
3 years ago
13

Explain how the earth's crust is in constant motion even though it appears to be sitting still.

Chemistry
1 answer:
salantis [7]3 years ago
6 0
Tectonic plates, specifically divergent plates, are constantly creating new crust on the surface, pushing the older crust away. Additionally, the mantle has convection cycles that makes hot magma rise, further leading to the crust constantly moving because of that warm lava force.
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The stronger the intermolecular forces, the _______the energy needed to separate the molecules, the ____________the boiling poin
slamgirl [31]

Answer:

higher, higher

Explanation:

It takes more energy to rip apart stronger bonds (that's mostly just common sense there). The boiling point increases because it would take more energy to get the molecules to go from a stuck together liquid, to separating in a gaseous form.

7 0
3 years ago
A piece of material with a mass of 755 g is heated to 84.5 c and added to 50 g of water at 5
lana [24]
Alright sorry you're getting the answer hours later, but i can help with this.
so you're looking for specific heat, the equation for it is <span>macaΔTa = - mbcbΔTb with object a and object b. that's mass of a times specific heat of a times final minus initial temperature of a equals -(mass of b times specific heat of b times final minus initial temperature of b)
</span>so putting in your values is, 755g * ca * (75 celsius - 84.5 celsius) = -(50g * cb * (75 celsius - 5 celsius))
well we know the specific heat of water is always 4180J/kg celsius, so put that in for cb
with a bit of simplification to the equation by doing everything on each side first you have, -7172.5 * ca = -14630000
divide both sides by -7172.5 so you can single out ca and you get, ca= 2039.74
add units for specific heat which are J/kg celsius and the specific heat of the material is 2039.74 J/kg celsius

6 0
4 years ago
When electrons are added to the outermost shell of a carbon atom, it forms
jenyasd209 [6]
I believe it forms an anion that has a larger radius.
3 0
4 years ago
Read 2 more answers
What are precautions to be taken when doing titrations? A-Make sure to always vigorously shake that flask after every drop if th
-BARSIC- [3]

Answer:

E

Explanation:

This is because all steps from A-D are important to obtain an accurate result

6 0
3 years ago
Type the correct answer in each box. Spell all words correctly.
Dmitry_Shevchenko [17]
There’s nothing there?
8 0
4 years ago
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