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meriva
3 years ago
7

Which statement below BEST describes the difference between mixtures and pure substances? Group of answer choices Mixtures are m

ade of a single kind of matter but a pure substance is two or more substances that are chemically bonded. Pure substances can be physically separated but mixtures cannot be physically separated. Pure substances are not created through a chemical reaction and mixtures are the result of a chemical reaction. Mixtures can be physically separated but pure substances cannot be physically separated.
Chemistry
1 answer:
lianna [129]3 years ago
6 0

Answer:  <u>Mixtures can be physically separated but pure substances cannot be physically separated.</u>

Explanation: Mixtures can be physically separated by using methods that use differences in physical properties to separate the components of the mixture, such as evaporation, distillation, filtration and chromatography. A pure substance, any compound or element, can't be separated into different atoms by physical methods. Pure substances are compounds and elements (made up of the same atom or same molecule respectively), while mixtures are an assortment of different substances put together. Hope this helps ^-^.

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<em>-</em><em> </em><em>BRAINLIEST</em><em> answerer</em><em> ❤️</em>

3 0
3 years ago
If 550 mL of a 3.50 M KCl solution are set aside and allowed to evaporate until the volume of the solution is 275 mL, what will
tatiyna

Answer:

Explanation:

Molarity = number of moles / volume

If 550 mL of a 3.50 M KCl solution are set aside and allowed to evaporate until the volume of the solution is 275 mL, which is half of 550 mL, the molarity of the solution with the same number of moles of KCl is 3.5 * 2 = 7.00 M

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2 years ago
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What is the mass of a steel cylinder that has a density of 75.0 g/mL and a volume of 12 mL?
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hey there!:

density = 75.0 g/mL

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mass = ?

Therefore:

D = m / V

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Answer B

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