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Phoenix [80]
3 years ago
14

2. Which is most likely a result of Earth's rotation?

Chemistry
2 answers:
frez [133]3 years ago
4 0

Answer:

C

Explanation: Not all of earth experiences the same amount of day and night because the earth is tilted and it rotates.

jeyben [28]3 years ago
3 0

Answer:

C. All parts of Earth experience periods of daylight and darkness.

Explanation:

Not all parts of earth experience the same temperatures. For example, Alaska vs. Florida. Alaska is always freezing cold and Florida is generally always warm.

Not all parts of Earth experience extreme temperature changes either. For example, Florida doesn't experience extreme colds and Alaska doesn't experience extreme warmth.

Not all parts of Earth Experience the same amount of day and night. There are month long periods where Alaska doesn't see the sun, and it is pitch black, and dark. Florida experiences a decent amount of daylight. etc.

I used the same states for example throughout my answer to try to not confuse people. I hope my answer helped!

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Equal volumes of hydrogen and helium gas are at the same pressure. The atomic mass of helium is four times that of hydrogen. If
OverLord2011 [107]

Answer:

The ratio of the temperature of helium to that of hydrogen gas is 2:1.

Explanation:

Atomic mass of hydrogen = M

Temperature of hydrogen gas =T

Pressure of the hydrogen gas = P

Mass of the hydrogen gas = m

Moles of the hydrogen gas = n=\frac{m}{2M}

Volume of the hydrogen gas = V

Using an ideal gas equation:

PV=nRT=PV=\frac{mRT}{M}...(1)

Temperature of helium gas =T'

Pressure of the helium gas = P'= P

Mass of the helium gas = m' =m

Moles of the helium  gas = n'=\frac{m}{M'}=\frac{m}{4M}

Volume of the helium gas = V' = V

Using an ideal gas equation:

P'V'=n'RT'=\frac{mRT'}{4M}...(2)

Divide (2) by (1)

\frac{P'V'}{PV}=\frac{\frac{mRT'}{4M}}{\frac{mRT}{2M}}

\frac{T'}{T}=\frac{2}{1}

The ratio of the temperature of helium to that of hydrogen gas is 2:1.

7 0
3 years ago
Which of the following molecules has correctly labeled bond dipoles?
olga_2 [115]

Answer: The molecule identified with the letter C. HFO.


Explanation:


1) In covalent bonds, the dipoles are identified with an arrow pointing from the least electronegative element toward the most electronegative element.


2) The molecule HFO is formed by one covalent bond between H and O, and other covalent bond between F and O.


3) O is more electronegative than H, so in the H-O bond the dipole is identified with the arrow from the H atom toward the O atom. That is correctly indicated in the drawing C, in this way:


-|----→

H - O


4) F is more electronegative than O, so in the O-F bond the dipole is identified with an arrow from the O atom toward the F atom. That is correctly indicated in this way:


-|---→

O - F.

4 0
3 years ago
A car moved 20 km east and 60 km west. What is it’s average velocity?
Stels [109]

Answer:

60-20=40km west because the direction Will favour whichever direction is bigger

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3 years ago
a person in a head-on car crash collision, who is not wearing a seat belt, continues to move forward at the original speed of th
Inessa [10]
They will continue moving because an object in motion will stay in motion until acted upon by a new force. I believe this is Newton's Law of Motion.
4 0
4 years ago
16. Which is NOT true of an atom obeying the
Anton [14]

Answer:

Explanation:

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