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GaryK [48]
3 years ago
14

Which statement describes sunspots? A.Sunspots have a bright white appearance. B.Sunspots occur in the radiative zone of the sun

. C.Sunspots occur in areas of extremely low magnetic fields. D.Sunspots have lower temperatures than their surroundings.
Chemistry
1 answer:
Ugo [173]3 years ago
8 0

Answer:

The statements that describe sunspots is;

D. Sunspots have lower temperatures than their surroundings

Explanation:

Sunspots is a phenomenon that involves temporary appearance of dark areas on the Sun's surface, which are regions of concentrated magnetic field flux which inhibit heat transfer by convection and are therefore cooler than other parts of the Sun. Due to the presence of magnetic field magnetic  

Sunspots are temporary phenomena on the Sun's photosphere that appear as spots darker than the surrounding areas. They are regions of reduced surface temperature caused by concentrations of magnetic field flux that inhibit convection. Opposite magnetic polarity sunspots usually appear as a pair.

Therefore, the statement that best describe sunspots is that a sunspot is a region of reduced temperature compared to surrounding areas on the Sun's surface.

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very cold temperatures

Explanation:

A superconductor performs best at very cold temperatures.

A superconductor is a perfect conductor that is able to allow the passage of electricity and heat without resistance.

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3 years ago
I’m confused because this is the answer key and I don’t know how they got the answer to number 1)
Tems11 [23]

Question One

It's more a question of unscrambling what is there. The answer is correct.

If you look at your periodic table, there is such an element as Na which I suspect might be the problem.

It has an atomic mass of 23. It's atomic number is 11 which means it is the 11th member (by mass) on the periodic table. The other 2 are oxygen and hydrogen.  So Oxygen has an atomic mass of 16 and Hydrogen has an atomic  mass of 1.

Oxygen is number 8 on the periodic table and hydrogen is number 1.

Molecular Mass

Na = 23

O = 16

H = 1

Total 40, just as the answer key says. I've probably given you more than you wanted to know, but if you still have trouble, leave a note.

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Is that supposed to say 200/2.00??
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