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andreev551 [17]
2 years ago
8

A solid has an volume

Chemistry
1 answer:
kotykmax [81]2 years ago
7 0

Yes, a solid has a fixed volume.

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The work done to compress a gas is 83.0 J. As a result, 27.0 J of heat is given off to the surroundings. Calculate the change in
stellarik [79]

Answer:

ΔU° = 56.0 J

Explanation:

Step 1: Given data

  • Work done to compress the gas (w): 83.0 J (When work is done on the gas, w is positive).
  • Heat given off to the surroundings (q): -27.0 J (When heat is released to the surroundings, q is negative)

Step 2: Calculate the change in the internal energy of the gas (ΔU°)

The internal energy of a gas is the energy contained within it. We can calculate it using the following expression.

ΔU° = q + w

ΔU° = -27.0 J + 83.0 J

ΔU° = 56.0 J

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What is the purpose of strawberry seeds
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The goal there is for the fruit to not get eaten, so that the seed can rely on the fruit's nutrients to support its growth.” Presumably, the strawberry went for evolutionary option number one – attract something to spread the seeds  

Explanation:

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Which of the following is a chemical property? freezing point color ability to react with oxygen hardness
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<span>Oxidation or reaction with oxygen is a chemical property</span>
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Lionel places red blood cells in a beaker of pure water, and then he observes their
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The red blood cells will burst

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When the red blood cells are placed in pure water, they will gain water by osmosis, swell and finally burst due to their weak cell membranes. This process is referred to as hemolysis.

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3. How many molecules are in 0.500 moles of sulfur?
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No of molecules=0.500×6.023×10²³=3.011×10²³ molecules

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