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sergeinik [125]
2 years ago
13

2)A relatively unreactive metal that is yellow colored.

Chemistry
1 answer:
Vlad1618 [11]2 years ago
3 0

I think we're in the same class lol

1. Sodium

2. Gold

3.  Helium

4. Sulfur

5. Magnesium

6. Cesium.

7. Silicon

8. fluorine

9. Nickel

10. Magnesium

11. Tungsten

12. hydrogen

13. Calcium

I did my best, here's my answers. Enjoy.

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Explanation:

Using arrhenius formula:

k = A e^\frac{-E_{a}}{RT}

Where k is rate constant; A is frecuency factor; Eₐ is activation energy; R is gas constant (0,008134 kJ/molK); T is temperature 25°C = 298,15K

Thus, replacing for an activation energy of 125 kJ/mol assuming A as 1:

k = 1,25x10⁻²²

When activation energy is 55kJ/mol:

k = 2,31x10⁻¹⁰

Thus, the factor of increasing reaction rate is:

2,31x10⁻¹⁰/1,25x10⁻²² =<em> 1,85x10¹²</em>

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I hope it helps!

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