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Flauer [41]
2 years ago
5

Debscribe each of the following with the correct term

Chemistry
1 answer:
Irina-Kira [14]2 years ago
7 0
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Henry mixed salt and water together in a cup until he observed a clear solution. He measured the mass of the solution. Then he p
Svet_ta [14]
Statement 2 is correct.
solids moving into solution is a physical change as the core structure of the molecules remain the same. evaporation of water and crystallization of salt are both physical changes as well.
The water does not change it's H2O chemical makeup because salt was dissolved into it.
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3 years ago
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A _________ mixture is not well mixed.
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The answer would be D Heterogeneous
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I’ll give Brainliest Faaaaaaast
Bezzdna [24]

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give me brainliest please?

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Explanation:

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When will a seed begin to germinate?
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When it has sunlight and water
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3 years ago
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How many molecules are present in 4.21 moles of HBr?​
salantis [7]

Answer:

The answer is

<h3>2.53 × 10²⁴ molecules</h3>

Explanation:

The number of molecules present can be found by using the formula

<h3>N = n × L</h3>

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

N = 4.21 × 6.02 × 10²³

We have the final answer as

<h3>2.53 × 10²⁴ molecules</h3>

Hope this helps you

6 0
3 years ago
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