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alexgriva [62]
4 years ago
8

Where are the lanthanide elements located

Chemistry
1 answer:
Makovka662 [10]4 years ago
3 0

it's located at the bottom of the periodic table.

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If 8.0 g of NH4HS(s) is placed in a sealed vessel with a volume of 1.0 L and heated to 200 ∘C the reaction NH4HS(s) ⇌ NH3(g) + H
PIT_PIT [208]

Answer:

Increasing the volume of the vessel

Explanation:

By the Le Chatelier's principle, if a system in equilibrium suffer a variation that disturbs the equilibriu, the reaction shift in the way to minimize the pertubation and re-establish the equilibrium.

For a variation in pressure, when it increases, the reaction shift for the smallest of gas volume, and if decreases, the reaction will shift for the large gas volume. So, for the reaction given, the products have the large amount of gas, so by decreasing the pressure, more products will be formed, and the amount of NH₄HS will reduce. To decrease the pressure, we can increase the volume of the vessel: for the ideal gas equation (PV= nRT), pressure and volume are indirectly proportional.

7 0
3 years ago
Which of the following is argued to be the heaviest naturally occurring element?
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4 0
3 years ago
How many mmoles are in 8.34 mol ?
borishaifa [10]

Answer:

8.34 moles

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4 0
4 years ago
What is the average atomic mass of the element?
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The average atomic mass of element X is 14.007 u.

The average atomic mass of X is the <em>weighted average</em> of the atomic masses of its isotopes.

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7 0
3 years ago
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