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nika2105 [10]
3 years ago
10

Can someone help, please ??

Chemistry
2 answers:
Yuri [45]3 years ago
8 0
13. The periodic table was discovered by Dalton.
14.NaCl is sodium chloride
Zinaida [17]3 years ago
5 0
Number 13 is D. Mendeleev. He was a Russian chemist and inventor who formulated the periodic table.
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How many atoms are in 6.3 mol Zn
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Answer:

3.8x1024atoms Zn

Explanation:

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Resonance in air columns is used in which of these musical Instruments?
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What is the percent concentration of a 250 ml solution with 0.120 g nacl?
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3 years ago
Please select the most appropriate answer for the blank: Entropy change is defined only along the path of a(n) ___________ proce
Whitepunk [10]

Entropy change is defined only along the path of an internally reversible process path.

<h3><u>What is Entropy Change </u>?</h3>
  • Entropy is a measure of a thermodynamic system's overall level of disorder or non-uniformity. The thermal energy that a system was unable to use to perform work is known as entropy.
  • Entropy Change is a phenomena that measures how disorder or randomness have changed inside a thermodynamic system.
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  • Entropy is a state function, hence it is independent of the direction that the thermodynamic process takes.
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To view more questions about entropy change, refer to:

brainly.com/question/4526346
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8 0
2 years ago
If an ideal gas has a pressure of 2.97 atm, a temperature of 449 K, and has a volume of 58.35 L, how many miles of gas are in th
soldi70 [24.7K]
N = ?

T = 449 K

V = 58.35 L

P =2.97

R = 0.082

Use the clapeyron equation:

P x V = n x R x T

2.97 x 58.35 = n x 0.082 x 449

173.2995 = n x 36.818

n = 173.2995 / 36.818

n = 4.70 moles

hope this helps!



7 0
3 years ago
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