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Alex777 [14]
3 years ago
15

Which of the following best describes an atom?

Chemistry
1 answer:
Kipish [7]3 years ago
4 0

Answer:

the smallest particle of a chemical element.

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Explain how Mendel used the F1 generation to conclude that genes are inherited.
fredd [130]

Answer:

studied the generation to see there traits

Explanation:

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3 years ago
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Compare the evaporation of a contained liquid with that of an uncontained liquid.
vekshin1

Answer: all other conditions equal, the rate evaporation of a contained liquid will be slower than the rate of evaporation of an uncontained liquid.


Justification:


1) The rate of evaporation increases as the surface area of the liquid (relative to the whole content) increases. This is, the greater the surface is the faster the evaporation.


2) That is so because the higher the surface of the liquid the more the number of particles in the liquid that are in contact with the surrounding air and so the more the particles will escape from the liquid to the air (which is what evaporation is).


3) A liquid contained will take the form of the container, so part of the liquid wil remain below the surface, while an uncontained liquid will spread all over the surface and so pratically all the liquid is in contact witht the air surrounding it.

8 0
3 years ago
Which value gives the number of particles in 1 mol of a substance?
d1i1m1o1n [39]
The answer is <span>6.02x 10^23.</span>
3 0
4 years ago
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Over a period of 30 days a student studied the night sky and recorded his observations. One night he watched a shooting star str
Temka [501]

Answer:

meteor

Explanation:

The most logical identification of a "shooting star" is a meteor. A meteor is basically any material from outerspace that falls to Earth. The main characteristic of a meteor is that from our point of view on the surface of the Earth it looks like a shooting star because we see a streak of light behind it. This light is simply dust and rock from the meteor burning up as it enters the Earth's atmosphere, leaving a "tail" of light behind it. Which to us looks like a shooting star.

8 0
3 years ago
How do you correctly put the number 0.00000000008759 in scientific notation with 3 sig figs?
vesna_86 [32]

Answer:

8.759×10-11

Explanation:

it may be to sure try to convert the answer

5 0
3 years ago
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