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Mazyrski [523]
2 years ago
8

Define the following terms a. crystallization b. radical c. mixture​

Chemistry
2 answers:
anastassius [24]2 years ago
8 0

a) Crystallization :- Crystallization is a chemical process in which the solid-liquid separation technique occurs. This process causes mass transfer of a solute from the liquid solution to a pure solid crystalline phase.

b) Radical :- A radical is an atom of an element or a group of atoms of different elements that behaves as a single unit with a positive or negative charge on it.

c) Mixture :- A mixture is a combination of two or more substances (elements or compounds) which is not done chemically.

Explanation:

<h3>Hope it helps you!! </h3>
Brut [27]2 years ago
4 0

Answer:

(a) Crystallization is a process which helps to separate a pure solid from a solution in its crystal form. This is the in use to purify solid. For an example the salt we get from seawater can have many impurities in it. Hence, the process of crystallization is in use to remove these impurities.

(b) A radical is an atom of an element or a group of atoms of different elements that behaves as a single unit with a positive or negative charge on it.

(c) Mixtures are constituted by more than 1 kind of pure form known as substance. There are 2 types of mixture:-

(i) homogeneous

A mixture in which the constituents are uniformly distributed throughout without any clear boundary of separation

(ii) Heterogeneous

A mixture in which constituents don't have uniform composition and has a visible boundary of separation.

Explanation:

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Sophie [7]

Answer:

The thumb alone is controlled by nine separate muscles; The hand has been used as a symbol of protection since ancient times; The human hand is different to the hands or paws of other animals, because it has fingers and a thumb that can work together. Each finger has 3 bones and the thumb has two bones

Explanation:

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2 years ago
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What causes a substance to change states of matter?
kolezko [41]
Salutations!

What causes a substance to change states of matter?

Energy causes a substance to change states of matter. A matter needs energy to melt, evaporate, boil. Remember: Energy has a sudden change, but the temperature remains absolutely the same. An example of a change in energy is when ice is melting.

Hope I helped (:

Have a great day!
8 0
3 years ago
How many liters of radon gas would be in 3.43 moles at standard temperature and pressure (273 K and 100 kPa)?
MissTica

Answer: Option B. 76.83L

Explanation:

1 mole of a gas occupy 22.4L at stp. This implies that 1mole of Radon also occupy 22.4L at stp.

If 1 mole of Radon = 22.4L

Therefore, 3.43 moles of Radon = 3.43 x 22.4 = 76.83L

5 0
3 years ago
What is the mass of 25 Liters of nitrogen dioxide gas?
ValentinkaMS [17]

Answer:

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Explanation:

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7 0
3 years ago
Methane burns in the presence of oxygen to form carbon dioxide and water.
wlad13 [49]

Answer:

= 9.28 g CO₂

Explanation:

First write a balanced equation:

CH₄ + 2O₂ -> 2H₂O + CO₂

Convert the information to moles

7.50g CH₄ = 0.46875 mol CH₄

13.5g O₂ = 0.421875 mol O₂

Theoretical molar ratio CH₄:O₂ -> 1:2

Actual ratio is  0.46875 : 0.421875 ≈ 1:1

If all CH₄ is used up, there would need to be more O₂

So O₂ is the limiting reactant and we use this in our equation

Use molar ratio to find moles of CO₂

0.421875 mol O₂ * 1 mol CO₂/2 mol O₂=0.2109375 mol CO₂

Then convert to grams

0.2109375 mol CO₂ = 9.28114 g CO₂

round to 3 sig figs

= 9.28 g CO₂

5 0
3 years ago
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