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olya-2409 [2.1K]
3 years ago
15

What happens to a substance when a physical change happens? (1 point) a A substance may change color or state. There is a new su

bstance formed. b A substance may change color or state. There is no new substance formed. c A substance may change shape, size, or state. There is a new substance formed. d A substance may change shape, size, or state. There is no new substance formed.
Chemistry
1 answer:
Art [367]3 years ago
5 0

Answer:

The answer is D: A substance may change shape, size, or state. There is no new substance formed.

Explanation:

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Which possible discovery would be attributed to an inorganic molecule?
egoroff_w [7]

Answer:

fireproofing spray used in firefighting can be termed as one of the possible discovery that would be attributed to an inorganic molecule.

Explanation: • There a number of advancement been made each day to improve the different process either domestic, industrial, or related to research work. As a number of professionals are always in search to get the right set of information or data to get to a more proper conclusion.

4 0
2 years ago
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Which of the following are characteristics of vertebrates?
djverab [1.8K]
<span><u><em>Answer:</em></u>
All of the above

<u><em>Explanation:</em></u>
Vertebrates are a class of creatures falling under kingdom "<u>Animalia</u>" that are characterized by the presence of an internal skeleton composed of bones.

<u>Vertebrates are characterized by the following:</u>
1- presence of internal skeleton
2- developed brain
3- the presence of an advanced nervous system connected to the brain
4- presence of muscles that allow movement
5- protective skin
6- circulation of blood in the bodies in the vessels

Comparing the mentioned characteristics with the options given, we will find that the most suitable answer is: <u>"all of the above"</u>.

Hope this helps :)</span>
5 0
3 years ago
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The kinetic energy of a moving object depends on its mass and its
Verizon [17]
I think the answer is a, volume, but I still might be wrong.
8 0
3 years ago
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Which reaction model represents a nuclear fission reaction?
julsineya [31]

Answer: option B

Explanation: since nuclear fission involves the decay of larger nuclide into smaller nuclei along with Neutron when it is collide with Neutron.

Example Decay of U-235 into Kr and Ba along with 3 neutrons

8 0
3 years ago
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Enter the oxidation number of one atom of each element in each reactant and product.
Anton [14]

Answer:

1. -4

2. +1

3. 0

4. +4

5. -2

6. +1

7. -2

reduced = H

oxidized = O

Explanation:

Know oxidation rules.

- Hope this helped! Please let me know if you would like to learn this. I could show you the rules and help you work through them.

7 0
3 years ago
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