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irga5000 [103]
3 years ago
8

An area of the Sun that seems much brighter than the area around it is

Chemistry
2 answers:
Morgarella [4.7K]3 years ago
5 0
C. Solar flare
I think this right have a good day :)
goldfiish [28.3K]3 years ago
3 0

Answer:

C. solar flares

Explanation:

Sunspots are areas of the Sun that are darker than the area around them. This is not the answer because we are looking for the opposite of this. The answer is not solar winds because solar winds are winds the Sun and other planets release. The answer is not D because electromagnetic radiation is just a type of radiation. The answer to the question is C.

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The pOH of a solution of KOH is 11.30. What is the [H*] for this solution?​
Sloan [31]

Answer: The concentration of hydrogen ions for this solution is 1.99 \times 10^{-3}.

Explanation:

Given: pOH = 11.30

The relation between pH and pOH is as follows.

pH + pOH = 14

pH + 11.30 = 14

pH = 14 - 11.30

= 2.7

Also, pH is the negative logarithm of concentration of hydrogen ions.

pH = - log [H^{+}]

Substitute the values into above formula as follows.

pH = -log [H^{+}]\\2.7 = -log [H^{+}]\\conc. of H^{+} = 1.99 \times 10^{-3}

Thus, we can conclude that the concentration of hydrogen ions for this solution is 1.99 \times 10^{-3}.

4 0
3 years ago
Scientists often work on projects for a long time and fail to see sources of error in their research. Which process allows an ou
prohojiy [21]

Answer:

The correct approach is Option B (Peer Review).

Explanation:

  • Rather made reference to someone as a scientific peer-review, it encourages the specialist who has not been essential to the study team to analyze the study objectively and pointed out everyone's mistakes. It serves as major self-regulation for scholars and aims to make the publishing process somewhat credible. Hence, the solution to this issue is Peer Examination.
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Other approaches do not apply to the example mentioned. Although the one mentioned is right.

4 0
3 years ago
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The answer is a because its not low ductile or gasst

8 0
3 years ago
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Force develops when two solutions each different concentration solutes separated semipermeable membrane
Zarrin [17]
Answer is: osmotic pressure.
Osmotic pressure, alongside the vapor pressure depression, freezing point depression and the boiling point elevation are<span> the </span>colligative properties od solution.
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3 years ago
What is capillary action? Describe how capillary action shown by water is useful for plants and animals on Earth.
Shtirlitz [24]

Answer:

Look Below

Explanation:

Capillary action is adhesion of water. In plants, capillary action allows water to move from the roots to leaves. In animals, capillary action plays a role in respiration where oxygen-poor blood oxygenates in the capillaries.

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3 years ago
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