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2 years ago

Compression and erosion of rocks are responsible for the creation of

Chemistry

1 answer:

Anastaziya [24]2 years ago

5 0

The correct answer is - landscapes.

Both the compression and the erosion are processes that contribute to the shape and form of the landscape. They are different from one another and create different types of landscape forms. The compression is the one that creates hills, mountain ranges, highlands, and it does that by creating a lot of pressure on the land which gradually lifts it upwards. The erosion, on the other hand, is a process that has the opposite effect. The erosion has a tendency to flatten the landscape. It moves away the sediments broken down by the weathering and gradually makes the landscape flatter. Also it creates numerous interesting shapes in the nature, especially on the places where the wind and the water are the ones responsible for the erosion.

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The transfer of energy changes the what of water

pentagon [3]

The water cycle ...........

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2 years ago

0.10 M potassium chromate is slowly added to a solution containing 0.20 M AgNO3 and 0.20 M Ba(NO3)2. What is the Ag+ concentrati

erastova [34]

Answer:

$[Ag^{+}]=4.2\times 10^{-2}M$

Explanation:

Given:

[AgNO3] = 0.20 M

Ba(NO3)2 = 0.20 M

[K2CrO4] = 0.10 M

Ksp of Ag2CrO4 = 1.1 x 10^-12

Ksp of BaCrO4 = 1.1 x 10^-10

$BaCrO_4 (s)\leftrightharpoons Ba^{2+}(aq)\;+\;CrO_{4}^{2-}(aq)$

$Ksp=[Ba^{2+}][CrO_{4}^{2-}]$

$1.2\times 10^{-10}=(0.20)[CrO_{4}^{2-}]$

$[CrO_{4}^{2-}]=\frac{1.2\times 10^{-10}}{(0.20)}= 6.0\times 10^{-10}$

Now,

$Ag_{2}CrO_4(s) \leftrightharpoons 2Ag^{+}(aq)\;+\;CrO_{4}^{2-}(aq)$

$Ksp=[Ag^{+}]^{2}[CrO_{4}^{2-}]$

$1.1\times 10^{-12}=[Ag^{+}]^{2}](6.0\times 10^{-10})$

$[Ag^{+}]^{2}]=\frac{1.1\times 10^{-12}}{(6.0\times 10^{-10})}= 1.8\times 10^{-3}$

$[Ag^{+}]=\sqrt{1.8\times 10^{-3}}=4.2\times 10^{-2}M$

So, BaCrO4 will start precipitating when [Ag+] is 4.2 x 1.2^-2 M

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3 years ago

How is the atomic mass of an atom calculated?

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3 years ago