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Delicious77 [7]
3 years ago
7

What does the group number of element 114 have to do with its stability?

Chemistry
1 answer:
zhenek [66]3 years ago
8 0

Answer:

Super-heavy elements like 114 usually only exist for fractions of a second. ... The physicists called these magic numbers the “island of stability”, because the elements with the numbers cluster together on the periodic table, flanked on all sides by ephemeral elements that dissipate in nanoseconds.

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If a reaction has an equilibrium constant slightly greater than 1, what type of reaction is it?
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Consider the synthesis of ammonia 3 H2+ N2 à 2 NH3 If a student were to react 38.5 g of nitrogen gas, how many moles of ammonia
Wittaler [7]

Answer:

2.75 mol

Explanation:

Given data:

Mass of Nitrogen = 38.5 g

Moles of ammonia produced = ?

Solution:

Chemical  equation:

N₂ + 3H₂    →     2NH₃

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Number of moles = mass/ molar mass

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Number of moles = 1.375 mol

Now we will compare the moles of ammonia and nitrogen from balance chemical equation.

           N₂            :            NH₃

            1              :             2

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Thus 2.75 moles of ammonia  are produced from 38.5 g of nitrogen.

4 0
3 years ago
What is the value of delta Hrxn for this equation:
Ratling [72]

Answer:

The ΔHrxn for the above equation = 179 kJ/mol

Explanation:

The reaction bond enthalpies are for the reactant;

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3 × O-H = 3 × 464 = 1,392 kJ/mol

The ΔHrxn for the above equation is therefore;

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6 0
2 years ago
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Answer:

There both true.

Explanation:

Hope this helps

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2 years ago
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