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
Novosadov [1.4K]
3 years ago
9

Select all of the following events in which a chemical change occurs.

Chemistry
2 answers:
stira [4]3 years ago
8 0

Answer:

i believe it is all but c

Explanation:

mr Goodwill [35]3 years ago
8 0
B D and E are all chemical changes.
Sugar dissolving is a physical change because no new substance is formed it’s just sugar particles broken down smaller.
You might be interested in
Vapor dispersion:
Contact [7]

Answer:

c. reduces the concentration of the hazardous material in the air.

Explanation:

Pollution can be defined as the physical degradation or contamination of the environment through an emission of harmful, poisonous and toxic chemical substances.

Particulate population is a form of pollution that is responsible for the degradation of the environment.

Particulate matter is also referred to as particle pollution or atmospheric aerosol particles and it can be defined as a complex microscopic mixture of liquid droplets and solid particles that are suspended in air. Other forms of particle pollution includes space debris and marine debris.

Some examples of particulate pollution are dusts, soot, dirt, smoke, etc.

Basically, various anthropogenic activities such as construction and agriculture are primary sources of particulate matter because they're capable of causing particle pollution on their own. The other sources of particle pollution is the secondary source which includes factories, cars, trucks, etc.

Vapor dispersion can be defined as a process which is typically used for removing particle pollutants from the atmosphere through the use of vapor or steam.

Hence, vapor dispersion when adopted, reduces the concentration of the hazardous material such as soot, dusts, smoke, etc., in the air.

5 0
3 years ago
Which of the following is the number of hydrogen atoms in a mole of hydrogen gas
german
I think B but not sure
5 0
3 years ago
Define and explain each trend.
Romashka [77]
Atomic radius- a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding cloud of electrons.
Electron Affinity-the electron affinityof an atom or molecule is defined as the amount of energy released or spent when an electron is added to a neutral atom or molecule in the gaseous state to form a negative ion.
Electronegativity-a measure of the tendency of an atom to attract a bonding pair of electrons. The Pauling scale is the most commonly used. Fluorine (the most electronegative element) is assigned a value of 4.0, and values range down to caesium and francium which are the least electronegative at 0.7.
Lonization energy- qualitatively defined as the amount of energy required to remove the most loosely bound electron, the valence electron, of an isolated gaseous atom to form a cation.
3 0
3 years ago
Which two climates have very low levels of precipitation
miv72 [106K]

Answer:

B highlands and polar, very little percipitation is found in polar regions, and high lands contributes to that

Explanation:

7 0
3 years ago
Read 2 more answers
A mixture from which some of the particles settle out slowly upon standing
LekaFEV [45]
suspensions - <span>A mixture from which some of the particles settle out slowly upon standing</span>
5 0
3 years ago
Other questions:
  • CALCULATE MOLEcular mass of KMnO4
    10·1 answer
  • Chemical substances that alter perceptions and moods are called ________ drugs.
    10·2 answers
  • What might happen to the sickle-cell mutation if malaria in Africa were eliminated?
    13·1 answer
  • What type of reaction is Mg + H2Cl2 — MgCl2 + H2?
    14·1 answer
  • The system by which organisms get and give energy is
    12·1 answer
  • 1.) Activation energy is _____.
    8·2 answers
  • Baby albino crocodile, Tall giraffe, Cactus, A desert. Which one doesn't belong?​
    15·2 answers
  • Molecular formula of SO2
    7·1 answer
  • Chemthink ionic bonding
    5·1 answer
  • If 2g of water is at 1C and a copper block at 3C is added to it, and the finall tempertature of mixture is 7 C , what is the mas
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!