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Mekhanik [1.2K]
2 years ago
14

Substances A and B are combined. When combined, substance A, which is a black solid, sinks to the bottom of substance B which is

a clear liquid. Based on this situation, which of the following is true.
A. Substances A and B formed a mixture
B. It is impossible to tell without more information
C. Substances A and B formed a compound
D. Substances A and B formed a new element
Chemistry
2 answers:
Makovka662 [10]2 years ago
4 0

Answer:

c thats just what i do

Explanation:

Kamila [148]2 years ago
4 0
I think it would be A
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What creates a thermocline?
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a difference in water temperature is the answer

What limits the growth of phytoplankton?

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It is limited by the amount of nutrients in the water is the answer

 

What are phytoplankton? (Select all that apply.)  

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are the answers

Which is a possible food chain in the ocean from start to finish?  

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6 0
2 years ago
@ What is the wavelength of a radio wave having a frequency of 3.75 X 107 Hz?
aniked [119]

Answer:

8 m

Explanation:

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6 0
2 years ago
why do you think Kool Aid comes in packets that has a very finely ground powder (finely ground means very small particles).
marishachu [46]

Answer:

Answer 1:

When you pour the kool-aid into water, the little crystals go straight to the bottom because they are heavier than the water. If you left them there without stirring, and came back a few days later, you wouldn't see any crystals on the bottom. That's because the stuff in kool-aid can DISSOLVE in water, which means that each little molecule of kool-aid gets suspended between the molecules of water. When that happens, you can't see the kool-aid anymore...it's trapped between the water molecules. When you stir kool-aid, you help DISSOLVE the kool-aid in water by keeping all of the crystals off the bottom and in the water. So you see, stirring kool-aid speeds up the dissolving,

Answer 2:

Are you referring to Koolaid in the granular form?If so the koolaid grains sink in water because the grains have a greater density than that of water. Once your stir the grains dissolve and go into solution where they remain because the dissolved koolaid is miscible with water unlike oil (floats) or gasoline (sinks). How long did you let the koolaid remain in the water before you stirred it? I would think that if you left it undisturbed for a long time (days) it would eventually mix on its own.

Answer 3:

I'm not a chemist, but I think I can answer your question about Kool-Aid. Kool-Aid is mostly sugar, which is heavier than water, so when you pour it in it sinks to the bottom. When you stir it up the sugar (and flavoring) dissolves so that you don't have any solid particles any more. Stuff that is dissolved in water will not sink because it is no longer a physically separate thing. It becomes part of the water (or water-sugar-flavor solution). What happens if you pour the Kool-Aid in but don't stir it? Will it eventually dissolve? You may have to wait a long time, like over night. Try it and let me know what you find!

Answer 4:

It all has to do with the rate at which kool-aid crystals (basically its SUGAR!!) dissolves in water relative to the rate at which the sugar crystals sink. If you just dump the stuff in, it sinks because it is denser than the water. As it sinks it dissolves. But when you stir the water, the rate of dissolution becomes greater than the rate of sinking and so the crystals dissolve before they reach the bottom. So it all has to do with the comparison between the rate of sinking versus the rate of dissolution.

Now I have an experiment for you. What happens if you mix up some Jello and instead of letting it sit still, you keep stirring it??? WILL THE JELLO EVER SET??

You may have to borrow your mom's mixing machine because you will get tired of stirring after 10 minutes!!!!

If you do the experiment let me know how it turns out. Actually, you should set up a control. Make two batches of Jello...with one, put it in the refrigerator and dont stir; with the other, keep stirring it (in the refrigerator), if you can figure how to arrange that without your mom or dad getting mad!!!

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3 years ago
Soil that is damaged and loses its nutrients is quick to regain nutrients.
Amiraneli [1.4K]

Answer:

false,soil damage and nutrient loss can be a major problem so it can not gain nutrients quickly

6 0
2 years ago
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