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inessss [21]
3 years ago
13

What is the term for a bond composed of three electron pairs shared between two atoms?

Chemistry
1 answer:
liraira [26]3 years ago
7 0
A covalent bond? Not sure how much detail you want, sorry
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What is the very small center core of an atom is called?
madam [21]
The small part in the center of the atom is called a nucleus
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Fe,0, is an example of
Amiraneli [1.4K]

Answer:

it is the example of molecules

7 0
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Please help me please please​
anzhelika [568]

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d

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Explanation:

8 0
3 years ago
At 25◦C a 4 L sample of H2 exerts a pressure of 5 atm. What pressure would the same sample exert in a 2 L container at 25◦C?
kykrilka [37]

Answer:

10 atm.

Explanation:

Using the combined gas law equation as follows;

P1V1/T1 = P2V2/T2

Where;

P1 = initial pressure (atm)

P2 = final pressure (atm)

V1 = initial volume (L)

V2 = final volume (L)

T1 = initial temperature (K)

T2 = final temperature (K)

According to the information provided in this question,

P1 = 5 atm

P2 = ?

V1 = 4L

V2 = 2L

T1 = 25°C = 25 + 273 = 298K

T2 = 25°C = 298K

Using P1V1/T1 = P2V2/T2

5 × 4/298 = P2 × 2/298

20/298 = 2P2/298

Cross multiply

298 × 20 = 298 × 2P2

5960 = 596P2

P2 = 5960 ÷ 596

P2 = 10 atm.

4 0
3 years ago
A scientist put red blood cells in water that contained salt. Over time, the red blood cells burst. What is most likely true?
Tamiku [17]

Answer: There was a lower concentration of salt in the water than in the cells.

Explanation:

Osmosis is a process in which the solvent flow from a solution of low concentration to a solution of high concentration through a semi-permeable membrane.  

When the red blood cells are put in water that contained salt and the red blood cells burst after some time.

This means the solvent has moved from outside to inside the cell and this is possible only when the concentration of solute is high inside the cell than outside. That means the solution has low concentration of solute as compared to the cell and was a hypotonic solution.

7 0
3 years ago
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