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defon
2 years ago
15

The Second Law of Thermodynamics makes it difficult for scientists to explain how the original universe became ordered.

Chemistry
2 answers:
ladessa [460]2 years ago
8 0

Answer:

True :)

Explanation:

Angelina_Jolie [31]2 years ago
6 0
The answer is true true true true true true true
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EleoNora [17]

Answer:

Speed, v = 5 m/s

Explanation:

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the person takes 20 seconds to run its length

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t

d

v=

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7 0
2 years ago
All atomic nuclei, except those of ordinary hydrogen, contain neutrons. <br> a. True<br> b. False
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4 0
3 years ago
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13.8g element consist 4.6 ×10^22 atoms what is atomic mass of element?​
Keith_Richards [23]
<h2>~<u>Solution</u> :-</h2>
  • Here, to find the atomic mass of element, we must;

We know that,

  • 4.6 x $ \sf{10^{22}}$ atoms of an element weigh 13.8g.

Thus,

The atoms of $ \sf{ 6.02 \times 10^{13}}$ will weigh;

=   \sf{\frac{13.8  \times 6.02 \times  {10}^{23} }{4.6 \times {10}^{22} } } \\

=  \sf{180.6 \: g \:  \: (molar \: mass)}

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8 0
2 years ago
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3 years ago
How many moles are in 9.8 x 1024 atoms of calcium?
Ratling [72]

Explanation:

no of moles = no of atoms ÷ avogadro's number

= (9.8×10^24) ÷ (6.02×10^23)

4 0
3 years ago
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