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Solnce55 [7]
3 years ago
5

One should know properties of constituents of a mixture to separate the mixture .Why?​

Chemistry
2 answers:
klio [65]3 years ago
8 0

Answer:

Because: The mixtures contain unwanted substances which may be harmful and may degrade the properties of mixtures. So we, need to separated them and extract useful substances.

a_sh-v [17]3 years ago
3 0

Answer:

The composition of the mixture is very important, as a result of nature exists solely by its properties, and also the reactions may be separated.

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GIVEN BRAINLIEST
umka21 [38]

Answer:

A. your observations in writing

Explanation:

Descriptive investigation is one of the mode of inquiries in science. It is devoid of the usual collection of data in the field or setting up laboratory experiments to compared variables.

  • In descriptive investigation, observations are usually done in writing.
  • They are usually common in Astrology.
  • Such investigation involves a question without a hypothesis ensuing.
  • Tests are usually not carried out in descriptive investigation.
6 0
3 years ago
Which of the following compounds would be named with a name that ends in -ene?
krek1111 [17]

Answer:

The answer is option D.

CH3-CH2-CH2-CH=CH2

it's name is <u> Pentene</u> and it's an alkene

Hope this helps you

7 0
2 years ago
The density of helium in a balloon is 1.18 g/L. If a
marissa [1.9K]
There is 3.58 He in the balloon.
3 0
3 years ago
Define mass number of an atom.​
Georgia [21]
The mass number of an atom is basically the total number of protons and neutrons.
6 0
2 years ago
Two alcohols, isopropyl alcohol and propyl alcohol, have the same molecular formula, C3H8O. A solution of the two that is two-th
iris [78.8K]

Answer:

1.

Since both components of these solutions have the same molar mass, mole fractions would be the same as mass fractions.

0.110 atm = (2/3)(Pi) + (1/3)(Pn) [1]

0.089 atm = (1/3)(Pi) + (2/3)(Pn) [2]

2*[1] - [2]:

(2)(0.110) - 0.089 atm = Pi

Pi = 0.131 atm

2*[2] - [1]:

(2)(0.089) - 0.110 atm = Pn

Pn = 0.068 atm

2.

The hydroxyl (-OH) group on the end of a longer 1-propanol molecule makes it more polar than IPA. It follows that the intermolecular forces between 1-propanol are stronger than those of IPA and thus the vapor pressure of 1-propanol should be lower than IPA.

Explanation:

5 0
3 years ago
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