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
kramer
3 years ago
12

Which of the following is a method of purifying water? A. Aeration B. Combustion C. Fixation D. Freezing

Chemistry
2 answers:
Leokris [45]3 years ago
8 0

\boxed{{\text{A}}{\text{. Aeration}}} is a method of purifying water.

Further Explanation:

A. Aeration

The technique in which air is dissolved in any liquid or substance is called aeration. It is also known as aerification or aeriation. It can be done by allowing air to pass through a liquid with the help of aeration turbines. Due to this process, water and air are brought closer to each other and as a result, dissolved gases are removed from the water. It is the initial step at the water treatment plant. It is also helpful to remove dissolved metals via oxidation, followed by filtration.

Generally, ammonia, carbon dioxide, methane, hydrogen sulfide, iron, manganese and volatile organic compounds like benzene are removed from water through the process of aeration.

B. Combustion

It is a type of chemical reaction occurring between any fuel and an oxidizing agent. It usually takes place when the hydrocarbon is allowed to react with oxygen. Energy, normally in the form of heat and light is produced during this process.

C. Fixation

It is a process that is required to fix a specimen with chemicals in order to stop autolysis during the preparation of the specimen. It has to be carried out just after the removal of tissues to avoid autolysis.

D. Freezing

It is a phase transition that occurs when a substance is to be converted from its liquid to a solid state. This is done by lowering the temperature of the substance below its freezing point. For example, water is transformed into ice by the process of freezing.

Therefore aeration is used to purify water.

Learn more:

  1. Identify the phase change in which crystal lattice is formed: brainly.com/question/1503216
  2. The main purpose of conducting experiments: brainly.com/question/5096428

Answer details:

Grade: Senior School

Chapter: Methods of purification

Subject: Chemistry

Keywords: aeration, fixation, combustion, freezing, purify, water, solid, liquid, specimen, autolysis, air, aeration tubes.

dusya [7]3 years ago
5 0
Answer: A 


I hope this helps and have a wonderful day filled with joy!
You might be interested in
I'm sorry for asking so many questions this assignment is past due and I need it done NOW
marishachu [46]

Answer:

7N to the right

Explanation:

7 0
2 years ago
Compare the number of valence electrons in an atom of oxygen, o, with the number of valence electrons in an atom of selenium, se
Fiesta28 [93]
Oxygen and selenium both have 6 valence electrons. They're in the same group hope this helps
4 0
3 years ago
Sandstone is a sedimentary rock which of the following characteristics would you look for in a piece of sand stone
vaieri [72.5K]
Sandstone is a sedimentary rock. The characteristics that you would <span>look for in a piece of sand stone are B. rock layers have small rocks or fossils in them. </span>
3 0
3 years ago
5. Complete and balance an equation for each reaction:
Kipish [7]

CaI₂ + Hg(NO₃)₂ --------->HgI₂ + Ca(NO3)2

2Al + 3Cl₂ --------->2AlCl3

Ag + HCl ------->AgCl + H2

C2H2 + 5O2 --------> 4CO2 + 2H2O

MgCl₂ --------->Mg + Cl2

6 0
3 years ago
The ingredients of the soda are best described as : Mixtures, compounds, or elements.
stira [4]

Answer:

Compound

Explanation:

Soda itself is a mixture made out of compounds.

5 0
3 years ago
Other questions:
  • What effect does thermal energy have on the rate of chemical reactions?
    8·2 answers
  • In preparation for a blizzard, a city dispatches a crew to spread salt on the street surface of the bridges around town. The sal
    10·1 answer
  • Identify the reaction type shown and describe the clues that were used to identify it.
    12·2 answers
  • If I give my teacher chocolate, then she will give me less homework because she will be happier
    7·1 answer
  • Which statements describe organic compounds? Check all that apply.
    15·2 answers
  • Physical and chemical properties, such as color, density, boiling point, solubility, conductivity, and flammability, A. do not d
    13·1 answer
  • How do you solve the level of a liquid in a graduated cylinder
    10·1 answer
  • A sample of gas has an initial pressure of 1.5 atm, an initial volume of 3.0 L, and an initial temperature of 293K. If the final
    15·1 answer
  • What is atoms in your own words
    15·1 answer
  • PLEASE PLEASE PLEASE PLEASE HELP ME WITH THIS!!!!!!!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!