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Amiraneli [1.4K]
3 years ago
8

How is a chemical reaction different from a physical reaction

Chemistry
1 answer:
denpristay [2]3 years ago
3 0
Physical reaction is something you can detect using your senses
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What is Ivan Pavlov most known for?
denis-greek [22]

Ivan Pavlov is most known for demonstrating conditioned lreflex in dogs.

<h3>what is conditioned reflex?</h3>

Conditioned reflex is a reflex action which has been conditioned to occur even without the stimulus which produces the reflex.

Ivan Pavlov is known to demonstrate conditioned reflex in dogs.

In his experiment, he trained dogs to salivate at the sound of a bell even if food which is the stimulus that produces salvation was not present.

Learn more about conditioned reflex at: brainly.com/question/24968947

5 0
2 years ago
Read 2 more answers
What is the created by this tilt and the Earth's orbital motion around the Sun?
erica [24]

Answer:

Periodic but not oscillatory

Explanation:

The Orbital motion of the earth around the sun is not an oscillatory motion as it is not a two and Fro motion about a mean position. But it is a periodic motion.

3 0
3 years ago
Screenshot very easy
Zolol [24]

1. option B

2. ground state Fe :  [Ar] 4s² 3d⁶

<h3>Further explanation</h3>

Aufbau rule

<em>Electrons occupy orbitals of the lowest energy level</em>

Charging electrons in the sub-shell uses the following sequence:  

1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰, 4p⁶, 5s², 4d¹⁰, 5p⁶, 6s², etc.  

So the correct choice of answer is B.

Ground state is the state of electrons filling skins with the lowest energy levels.

Excited state is the state of electrons which occupy a higher energy level

The atomic number of Fe = 26, so electrons=26

Ground state configuration of Fe : [Ar] 4s² 3d⁶ or

1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d⁶

4 0
2 years ago
What is ion exchange ​
dolphi86 [110]

Answer:

ion exchange is the exchange of ions of the same charge between an insoluble solid and a solution in contact with it, used in water-softening and other purification and separation processes.

Explanation:

hope this helped !

3 0
3 years ago
WHAT ELEMENT IS THIS
LenaWriter [7]

Answer: emission spectrum

Explanation:

4 0
3 years ago
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