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Tasya [4]
3 years ago
5

What does the atomic number ask​

Chemistry
2 answers:
Alik [6]3 years ago
5 0

I'm not sure what it asks, but it answers

  1. how many protons are in the nucleus
  2. how many electrons are in the atom
  3. where it sits in the periodic table
  4. If the periodic table is divided in the modern way, it gives a good indicator of whether you are speaking about a metal, a non metal or neither.
timurjin [86]3 years ago
3 0

how many protons are in the nucleus

how many electrons are in the atom

where it sits in the periodic table

If the periodic table is divided in the modern way, it gives a good indicator of whether you are speaking about a metal, a non metal or neither.

This is what it answers, I hope that this helps

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The decomposition of ethane is 153.344 times much faster at 625°C than at 525°C.

Explanation:

According to the Arrhenius equation,

K=A\times e^{\frac{-Ea}{RT}}

\log (\frac{K_2}{K_1})=\frac{Ea}{2.303\times R}[\frac{1}{T_1}-\frac{1}{T_2}]

where,

K_2 = rate of reaction at T_2

K_1 = rate of reaction at T_1

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R = gas constant = 8.314 J/K mol

E_a=300 kJ/mol=300,000 J/mol

T_2=625^oC=898.15 K,T_1=525^oC=798.15 K

\log (\frac{K_2}{K_1})=\frac{300,000 J/mol}{2.303\times 8.314 J/K mol}[\frac{1}{798.15 K}-\frac{1}{898.15 K}]

\log (\frac{K_2}{K_1})=2.185666

K_2=153.344\times K_1

The decomposition of ethane is 153.344 times much faster at 625°C than at 525°C.

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