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I am Lyosha [343]
2 years ago
12

The decrease in the water table due to overuse of water.

Chemistry
1 answer:
Vinvika [58]2 years ago
4 0

Answer:  Groundwater and surface water are connected. When groundwater is overused, the lakes, streams, and rivers connected to groundwater can also have their supply diminished. Land subsidence occurs when there is a loss of support below ground. This is most often caused by human activities, mainly from the overuse of groundwater, when the soil collapses, compacts, and drops.

Hope it Helps. :)

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If a sample of sodium chloride with a mass of
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Original molarity was 1.7 moles of NaCl

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Given Information:

Original (concentrated) solution: 25 g NaCl in a 250 mL solution, solve for molarity

Final (diluted) solution: More water is added to make the new total volume 1.2 liters, solve for the new molarity

1. Solve for the molarity of the original (concentrated) solution.

Molarity (M) = moles of solute (mol) / liters of solution (L)

Convert the given information to the appropriate units before plugging in and solving for molarity.

Molarity (M) = 0.43 mol NaCl solute / 0.250 L solution = 1.7 M NaCl (original solution)

2. Solve for the molarity of the final (diluted) solution.

Remember that the amount of solute remains constant in a dilution problem; it is just the total volume of the solution that changes due to the addition of solvent.

Molarity (M) = 0.43 mol NaCl solute / 1.2 L solution

Molarity (M) of the final solution = 0.36 M NaCl

I hope this helped:))
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3 years ago
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Be a chemist. Lol. Lessen waste, make chemicals more efficient, cure diseases... and stuff :)
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Explain a polar molecules and give examples​
ivanzaharov [21]
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What percentage of the total net electricity generated in America each day is
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Answer:

About 50%

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Select the correct answer. The wavelength of a given region of the electromagnetic spectrum ranges from 1 x 10-11 - 1 x 10-8 met
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X-rays are found in the given region.

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