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Serggg [28]
3 years ago
10

5. Which of the following materials

Chemistry
1 answer:
creativ13 [48]3 years ago
7 0

Answer: acetone

Explanation: Acetone has the weakest intermolecular forces, so it evaporated most quickly. Water had the strongest intermolecular forces and evaporated most slowly.

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5. Astronomers recently discovered a moon that does not<br> orbit a planet.
MAVERICK [17]

Answer:

I think the answer is Pluto

8 0
3 years ago
C. Why do people use Earth's motions to<br> determine units of time?
Sladkaya [172]

The people use Earth's motion to determine units of time because of its uniform motion which is consistent.

<u>Explanation:</u>

In earlier days, people used to observe the motion of Earth to measure time. This is because, the Earth is moving at constant speed and at constant acceleration. So the change in position of the sun or stars can be easily correlated to the time.

Due to the consistency in the Earth's motion and the accurate repetition of the time period along with the seasons, the Earth's motion can be considered as a responsible source to determine the units of time.

5 0
3 years ago
How many g of a 5.0% by weight NaCl solution are needed to give 3.2 g NaCl?
borishaifa [10]

Answer:

1.12

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8 0
3 years ago
a diagram of the electromagnetic spectrum is shown. which wavelength is the longest safest wavelengths for humans? Helppp please
alexdok [17]

Answer:

radio waves

Explanation:

the answer is simple, radio waves. it is radio waves because when you look at the diagram the waves below Radio are very long. if you look at the waves under gamma ray, they are very short. radio is the longest wave while gamma is the shortest. if you are still confused it also says longer wavelength and low frequency( meaning it is safe) right under the wavelength.

7 0
3 years ago
The lower the ph of a solution, the ______.
gtnhenbr [62]
B

a and c are unrelated
d: ph will increase
3 0
4 years ago
Read 2 more answers
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