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shepuryov [24]
3 years ago
5

If the chemical properties of a substance remain unchanged and the appearance or shape of an substance changes it is called a

Chemistry
2 answers:
Akimi4 [234]3 years ago
5 0

Answer:

B

Explanation:

physical change is the answer I hope

Morgarella [4.7K]3 years ago
3 0

Answer:

A

Explanation:

it is A because i am really smart

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According to which theory or law is a chemical reaction most likely to occur when two particles with the proper energy and orien
Nat2105 [25]
<h2>Collision Theory </h2>

Explanation:

<h3>The given statement is related to the collision theory - </h3>

Collision theory was given by William Lewis in 1916.

This theory explains in a qualitative manner that in what way any chemical reaction occurs and the reason for the different reaction rates for different reactions.

<h3>According to the collision theory - </h3>
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  • Sufficient amount of energy is needed for collisions (kinetic energy) so that the chemical bonds should break
  • This energy used is known as the activation energy
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6 0
3 years ago
How does distillation work.
Usimov [2.4K]

Answer:

Distillation is an important commercial process that is used in the purification of a large variety of materials. However, before we begin a discussion of distillation, it would probably be beneficial to define the terms that describe the process and related properties. ... Elevation of the boiling point with an increase in external pressure, while important in cooking and sterilizing food or utensils, is less important in distillation.

Explanation:

8 0
2 years ago
True or false <br><br> The mass of an electron is about equal to the mass of a proton.
pogonyaev
That is false (please mark me brainliest)
7 0
3 years ago
Answer pls pls plss this is my mock
Serggg [28]

Answer:

if this is a mock then just guess

Explanation:

4 0
3 years ago
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