1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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:

You might be interested in
How much do 15.26 moles of silver weigh in grams? Enter a number.
galina1969 [7]
15.26 miles of silver is 0.1414689408 grams
7 0
3 years ago
Read 2 more answers
A 7.337 gram sample of chromium is heated in the presence of excess oxygen. A metal oxide is formed with a mass of 9.595 g. Dete
Thepotemich [5.8K]
<h3>Answer:</h3>

Empirical formula is CrO

<h3>Explanation:</h3>

<u>We are given;</u>

  • Mass of sample of Chromium as 7.337 gram
  • Mass of the metal oxide formed as 9.595 g

We are required to determine the empirical formula of the metal oxide.

<h3>Step 1 ; Determine the mass of oxygen used </h3>

Mass of oxygen = Mass of the metal oxide - mass of the metal

                          = 9.595 g - 7.337 g

                         = 2.258 g

<h3>Step 2: Determine the moles of chromium and oxygen</h3>

Moles of chromium metal

Molar mass of chromium = 51.996 g/mol

Moles of Chromium = 7.337 g ÷ 51.996 g/mol

                                 = 0.141 moles

Moles of oxygen

Molar mass of oxygen = 16.0 g/mol

Moles of Oxygen = 2.258 g ÷ 16.0 g/mol

                            = 0.141 moles

<h3>Step 3: Determine the simplest mole number ratio of Chromium to Oxygen</h3>

Mole ratio of Chromium to Oxygen

          Cr : O

0.141 mol : 0.141 mol

             1 : 1

Empirical formula is the simplest whole number ratio of elements in a compound.

Thus the empirical formula of the metal oxide is CrO

6 0
3 years ago
What causes warm air to rise?
8090 [49]
A. The fact that it's less dense than cold air.
8 0
3 years ago
Read 2 more answers
______________ yield about 4 kcal/g when completely oxidized, whereas ___________ yield about 9 kcal/g.
Aleks [24]
Proteins and carbohydrates <span>yield about 4 kcal/g when completely oxidized, whereas fats yield about 9 kcal/g.</span>
3 0
3 years ago
Which of the following molecules may diffuse freely through a phospholipid bilayer? (select two answers) asparagine, an amino ac
lisabon 2012 [21]

Answer:

testosterone, a steroid hormone

molecular oxygen (O₂)

Explanation:

Phospholipid Bi layer is permeable to some molecules and it will allow them to pass through it freely. Molecules which are soluble in water (polar molecules or hydrophillic molecules) are less permeable through phospholipid Bi layer . In given options Molecular Oxygen and Testosterone( steroid Hormone) are permeable through the layer because of its lipid solubility and size of the molecule .

3 0
3 years ago
Other questions:
  • List the electron shell and the number of electrons in each shell
    6·2 answers
  • In your own words, explain what "the more mass a substance has, the greater the object's thermal energy" means.
    5·1 answer
  • An apple is placed on a scale. The scale shows the apple weighs 3/4 of a pound. This demonstrates that the apple has ___________
    11·2 answers
  • I need a background information for this lab report if anyone could help me please :((( it's due tomorrow
    9·1 answer
  • What are the boiling point and freezing point of a 0.40 m solution of sucrose in ethanol?
    11·1 answer
  • The following compound is a(n) _____________
    12·1 answer
  • What the Purpose of seeds
    14·1 answer
  • Calculate the molar mass of iron(III) sulfide. Round your answer to the nearest 0.1 and include units to receive credit.
    14·1 answer
  • Arnold kept a water log as a project for his chemistry class. Arnold's family consists of Arnold, his sister, and his parents fo
    14·1 answer
  • If I use the dropper to add 10 mL of drink mix to 50 mL of water, what is the
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!