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ANEK [815]
4 years ago
15

Which is the average kinetic energy of particles in an object?

Chemistry
1 answer:
Wittaler [7]4 years ago
3 0

Answer:

A temperature

Explanation:

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An electron moved from a higher energy level to a lower energy level. What most likely happened during the transition? (4 points
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Answer: The anwser is A a photon was realeased please mark brainliest

Explanation:

6 0
2 years ago
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What type of intermolecular forces are due to
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A. London dispersion

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London dispersion force is a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles. 

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(a)-Use Lewis symbol store present there action that occurs between Ca and F atoms. (b)-What is the chemical formula of the most
Charra [1.4K]

Answer:

(a) The Lewis structure is shown in the image below.

(b) CaF_2

(c) Calcium loses 2 electrons to 2 atoms of fluorine and these 2 atoms of fluorine accepts each electron to form ionic bond.

(d) Calcium atom loses electrons.

Explanation:

Calcium is the element of second group and forth period. The electronic configuration of Calcium is - 2, 8, 8, 2 or 1s^22s^22p^63s^23p^64s^2

There are 2 valence electrons of Calcium.

Fluorine is the element of group 17 and second period. The electronic configuration of the element fluorine is - 2, 7 or  1s^22s^22p^5

There is 1 valence electron of fluorine.

The Lewis structure is drawn in such a way that the octet of each atom is complete.  

Thus, calcium loses 2 electrons to 2 atoms of fluorine and these 2 atoms of fluorine accepts each electron to form ionic bond. This is done in order that the octet of the atoms are complete and they become stable.

Thus, the formula of calcium chloride is CaF_2.

<u>(a) The Lewis structure is shown in the image below.</u>

<u>(b) CaF_2</u>

<u>(c) Calcium loses 2 electrons to 2 atoms of fluorine and these 2 atoms of fluorine accepts each electron to form ionic bond.</u>

<u>(d) Calcium atom loses electrons.</u>

5 0
3 years ago
What is the method of seperating inmisible liquid<br>​
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Decantation is a process for the separation of mixtures of immiscible liquids or of a liquid and a solid mixture such as a suspension.
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7. For the following reaction, which of the following is a conjugate acid-base pair?
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Answer:

HPO42- (aq) + NH4+ (aq)

Explanation:

This is a conjugate acid-base pair. Please forgive if my answers are incorrect. I myself am quite unsure.

8 0
2 years ago
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