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Dmitriy789 [7]
3 years ago
14

I MARK BRAINLIEST :D

Physics
2 answers:
ludmilkaskok [199]3 years ago
8 0
It’s Newton’s law of motion. his first law of motion or could be third law of motion

olganol [36]3 years ago
3 0

Answer:

Explanation:

its a chair that spins around

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At 1 atm pressure, the heat of sublimation of gallium is 277 kj/mol and the heat of vaporization is 271 kj/mol. to the correct n
Andreyy89
Below are the choices that can be found elsewhere:

 a. 268 kJ 
<span>b. 271 kJ </span>
<span>c. 9 kJ </span>
<span>d. 6 kJ
</span>
So the key thing to realize here is what the information given to you actually means. Sublimation is going from a sold to a gas. Vaporization is going from a liquid to a gas. Hence you can create two equations from the information that you have: 

<span>Ga (s) --> Ga (g) delta H = 277 kJ/mol </span>

<span>Ga (l) --> Ga (g) delta H = 271 kJ/mol </span>

<span>From these two equations, you can then infer how to get the melting equation be simply finding the difference between the sublimation (two steps) and vaporization (one step). </span>

<span>Ga (s) --> Ga (l) delta H = 6 kJ/mol </span>

<span>At this point, all you need to do is a bit of stoichiometry. You start with 1.50 mol and multiply by the amount of energy per mole (6 kJ/mol). </span>

<span>*ANSWER* </span>
<span>9 kJ/mol (C)</span>
7 0
3 years ago
Why does it seem that the Sun is rising and setting in the sky?
Anna [14]
B when is spins it means its rotating east and west directions
6 0
3 years ago
Sound cannot travel through___________.
lana [24]

d.) a and b only

This is because sound needs a medium to travel.  It can travel in a solid (the fastest) and air for example.  Sound waves cannot propagate through a vacuum and since space is a vacuum the answer is a and b only.

5 0
3 years ago
Explain the law of inertia in your own words.
natita [175]

A

An object at rest will remain at rest unless acted on by a force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by a force.

Explanation:

6 0
2 years ago
Read 2 more answers
Explain how the air balloon moves up and down.<br> Explain in terms of density
Fantom [35]
The heat in the air ballon from the flame will create moisture in the ballon and make it rise
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2 years ago
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