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Neko [114]
3 years ago
14

Which list of elements from Group 2 on the Periodic Table is arranged in order of increasing atomic radius?

Chemistry
1 answer:
IgorC [24]3 years ago
4 0
The correct answer is option 1. Be, Mg, and Ca is the correct order arranged in increasing atomic radius. This is predicted based on the periodic table. The atomic sizes increases as one moves downwards in the periodic table.
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In the chemical formula 3nh3, how many atoms of hydrogen (h) are there? 3 6 9 11
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Your answer is 3! Hope you get a good grade :)♥
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A sample of pure NO2 is heated to 335 ∘C at which temperature it partially dissociates according to the equation 2NO2(g)⇌2NO(g)+
vodka [1.7K]

The equilibrium constant for the reaction is 0.00662

Explanation:

The balanced chemical equation is :

2NO2(g)⇌2NO(g)+O2(g

At t=t  1-2x ⇔ 2x + x moles

The ideal gas law equation will be used here

PV=nRT

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0.75 = \frac{0.525 x 0.0821 x 608.15 }{M}

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to calculate the Kc

Kc=\frac{ [NO] [O2]}{NO2}

  \frac{1-2x}{1+x} x M NO2 + \frac{2x}{1+x} M NO+ \frac{x}{1+x} M O2

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\frac{46(1-2x) +30(2x)+32x}{1+x}

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Kc= \frac{4x^2)x}{1-2x^2}

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5 0
3 years ago
2) which statement describes ionic bonding?
garik1379 [7]

Answer

odpowiedzi   d

Explanation

taka jest reguła

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