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Semenov [28]
3 years ago
13

What of the following could be classified as matter

Chemistry
1 answer:
Sholpan [36]3 years ago
7 0

Answer:

Desk

Water

Cloud

Helium

Explanation:

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Answers: A-5N B-6N C-7N D-8N
Misha Larkins [42]

Answer:

<h3>A-5N B-6N C-7N D-8N</h3>

Explanation:

i hope it helps ;)

5 0
3 years ago
Explain how did you find the qostion
Alekssandra [29.7K]
What do you mean by this?
6 0
2 years ago
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>
  • Molecules must collide in order to react
  • 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
  • On the increase in the temperature, the kinetic energy of the molecule increases and the molecules move faster and collide with a proper orientation at an increased speed
  • This increases the rate of a collision that in turn increases the breaking of the bond  

6 0
3 years ago
What are four indications that a chemical reaction bay be taking place
Mariana [72]
When a chemical reaction takes place it changes the composition of the reactants. The ways to tell if a reaction is occurring are,
1-Release of heat
2-Production of a gas
3-Formation of a precipitate 
4-Change in color
3 0
3 years ago
Convert 90.23 kPa into atm
svlad2 [7]

Answer:

The answer is

<h2>0.89 atm </h2>

Explanation:

To convert from kPa to atm we use the conversion

101.325 kPa = 1 atm

If

101.325 kPa = 1 atm

Then

90.23 kPa will be

\frac{90.23}{101.325}  \\  =0.89050086...

We have the final answer as

<h3>0.89 atm</h3>

Hope this helps you

6 0
3 years ago
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