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Helga [31]
3 years ago
5

What is true about water that is freezing?

Chemistry
2 answers:
lbvjy [14]3 years ago
6 0

The answer is d becausei just took the test

Liono4ka [1.6K]3 years ago
4 0
It is going through a physical change
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8. The time period of artificial satellite in a circular orbit of radius R is T. The radius of the orbit in which time period is
Elena-2011 [213]

Explanation:

It is given that,

The time period of artificial satellite in a circular orbit of radius R is T. The relation between the time period and the radius is given by :

T^2\propto R^3

The radius of the orbit in which time period is 8T is R'. So, the relation is given by :

(\dfrac{T}{T'})^2=(\dfrac{R}{R'})^3

(\dfrac{T}{8T})^2=(\dfrac{R}{R'})^3  

\dfrac{1}{64}=(\dfrac{R}{R'})^3

R'=4\times R

So, the radius of the orbit in which time period is 8T is 4R. Hence, this is the required solution.  

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4 years ago
What does it mean when we say "kinetic energy in an electron"?
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Temperature is a statistical quantity. The formal definition<span> is T = dU/dS, the change in internal </span>energy<span> with respect to entropy holding volume and particle number constant. A practical </span>definition<span> comes from the fact that the atoms, molecules, or whatever particles in a system have an </span>average kinetic energy<span>.</span>
7 0
3 years ago
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Which of the following is true about Oxygen (O), Sulfur (S) and Neon (Ne)? (Choose 3)
devlian [24]

Answer:

from the way I understand the question I think the answer is (B)

Explanation:

Because the distribution into shells of oxygen is 2,6 and in sulfur is 2,8,6 and oxygen has a 8th number of electrons and sulfur has the 16th number of electrons

3 0
3 years ago
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Balance the following SYNTHESIS chemical reaction with the correct coefficients:
kolbaska11 [484]

Answer:

b 2,3,1

Explanation:

2 Al + 3 S ----> Al2S3

4 0
3 years ago
Instructions:Select the correct answer.
lys-0071 [83]

Answer:-

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In case of Ca-Cl the difference = 3.16 - 1= 2.16

It is more than all the other combinations given.

Hence Ca-Cl is the most polar covalent bond.

3 0
4 years ago
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