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egoroff_w [7]
3 years ago
15

Question 3 of 10

Chemistry
2 answers:
Kruka [31]3 years ago
7 0
The awnser is b water freezing
miss Akunina [59]3 years ago
6 0

Answer:

the answer is B

Explanation:

B is the answer

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What has research determined about the orbit of an electron around a nucleus
polet [3.4K]
Hello,

Here is your answer:

The proper answer to this question is that "e<span>ach sub-level electron type has a unique path where it will likely to be found".

If you need anymore help feel free to ask me!

Hope this helps!</span>
4 0
3 years ago
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How many moles of KNO3 are in 500 mL of 2.0 M KNO3?<br> ___ mol KNO3
weeeeeb [17]

Answer: 1mole

Explanation:

Mole = concentration× Volume (dm3)

Mole = 2× 500/1000

4 0
3 years ago
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The reaction takes place in water. What happens to the equilibrium when the pressure is increased? a)It favors formation of prod
OLga [1]

Answer:

I don't really get the options but it favoures the reactant side.

Explanation:

Increasing pressure favours the side with fewer moles of gas while decreasing pressure favours the side with the more moles of gas. E.g

If there is 0 moles of gas particles in the reactant side and 1 mole of gas particle in the product side, increasing pressure favours the reactants while decreasing pressure favours the product side.

With the explanations I have made, I hope the question is now clear to you.

6 0
3 years ago
Answer the following questions:
Lynna [10]
The relationship of radiation with distance obeys the inverse square law. Therefore, doubling the distance decrease the radiation by a factor of 4. The new count is 250.
1) Applying the same principle, the count decreases by a factor of 100. The new count is 10
2) An alpha particle is 4He2 and the Hydrogen can be represented as 1H1
14N7 + 4He2 - 1H1
= 17X8
Proton number 8 belongs to Oxygen. Therefore, the resultant nucleus is:
17O8
3) 185Au79 - 4He2
= 181Ir77
4) X - 4He2 = 234Th90
X = 238U92
5) Beta emission results in the same nucleon number but an increase in the proton number; therefore, the result is:
234Pa91
7 0
3 years ago
Intravenous saline solutions are often administered to patients in the hospital. Normal saline solution containers has a concent
zalisa [80]

0.02 mol NaCl

Explanation:

(0.2M NaCl)×(0.10 L) = 0.02 mol NaCl

8 0
3 years ago
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