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Nookie1986 [14]
3 years ago
15

Many towns in flood-prone areas are surrounded by___ that are built to hold back rising water.

Chemistry
1 answer:
xxTIMURxx [149]3 years ago
8 0

Answer:

Flood barriers

Explanation:

Many towns in flood-prone areas are surrounded by flood barriers that are built to hold back rising water during seasonal highs.

  • Flood barriers are water resistant walls that are used to prevent breaking water during a high period of inundation from their channels.
  • They are usually vertical artificial structures which can be temporary or permanent.
  • They help to hold or contain the flood water during the high season.
  • These walls prevents flood plains and other nearby areas from getting flooded during the rainy season.
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What volume will 0.405 g of krypton gas occupy at STP?
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Answer:

The answer to your question is V = 0.108 L or 108 ml

Explanation:

Data

Volume = ?

mass = 0.405 g

Temperature = 273°K

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Process

1.- Convert mass of Kr to moles

                  83.8 g of Kr -------------------- 1 mol

                     0.405 g     -------------------  x

                     x = (0.405 x 1) / 83.8

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2.- Use the Ideal gas law to solve this problem

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- Solve for V

                      V = nRT / P

- Substitution

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- Simplification

                       V = 0.108 / 1

- Result

                       V = 0.108 L

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Explanation:

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