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wolverine [178]
3 years ago
12

What are homogenous mixtures

Chemistry
2 answers:
svetoff [14.1K]3 years ago
7 0

Answer:

a mixture in which the composition is uniform throughout the mixture.

Explanation:

ludmilkaskok [199]3 years ago
3 0

Answer:

Homogeneous mixtures are mixtures that have uniform composition in particle level.

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Why is steam distillation prefered over fractional distillation for the extraction of essencial oils?​
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Because , the advantage of steam distillation over simple distillation is that the lower boiling point reduces decomposition of temperature-sensitive compounds. Steam distillation is useful for the purification of organic compounds, although vacuum distillation is more common

Explanation:

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Which elements, when they have to, can have more than
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Elements in the third row can break the octet rule
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What would the volume of a gas be at 150c if had of volume of 693 ml at 45 c​
Vlad1618 [11]

Answer:

Explanation:

T1 = 150°C = (150 + 273.15)K = 423.15K

T2 = 45°C = (45 + 273.15)K = 318K

V1 = 693mL = 693cm³

Applying Charle's law, the volume of a given gas is directly proportional to is temperature provided that pressure remains constant.

V = kT

V1 / T1 = V2 / T2

693 / 423.15 = V2 / 318

V2 = (693 * 318) / 423.15 = 520.79cm³

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3 years ago
HCL ejercicio de química
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What I can’t understand I’m American
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If the volume of a cylinder is reduced from 8.0 liters to 4.0 liters, the pressure of the gas in the cylinder will change from 7
Elza [17]

Answer:

P₂ = 140 KPa

Explanation:

Given data:

Initial volume = 8.0 L

Final volume = 4.0 L

Initial pressure = 70 KPa

Final pressure = ?

Solution:

According to Boyle's law

P₁V₁ = P₂V₂

P₂ = P₁V₁  / V₂

P₂ = 70 KPa ×8.0 L/4.0 L

P₂ = 560 KPa .L / 4.0 L

P₂ = 140 KPa

6 0
3 years ago
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