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MissTica
3 years ago
14

The moon rises and sets every day, like the sun. Sarah noticed that the moon was sometimes visible at night and sometimes during

the day. She noted when she FIRST saw the moon (moon-rise) on two days in April. She looked up the time in the newspaper for moon-set. Both were different. Why? A) The moon is orbiting the Earth once per month. B) The night sky is moving east to west over Earth. C) The Earth is moving in an opposite direction from the moon. D) The apparent change in position is related to the Sun's reflection.
Chemistry
1 answer:
eimsori [14]3 years ago
3 0

the answer is A.) the moon is orbiting the earth once per month

its the only logical answer, the others are either impossible or illogical

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Sholpan [36]

Answer:

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Explanation:

6 0
3 years ago
10. Which of the following best describes the reaction 2VO3– (aq) + Zn (s) + 8H+ (aq) → 2VO2 (aq) + Zn2+ (aq) + 4H2O (l)? ______
Oduvanchick [21]
Correct answer is option E. <span>It is a redox reaction in which Zn is oxidized at the anode, and V is reduced at the cathode.

Reason:
In above reaction, the oxidation state of VO3- is +5, while that of VO2 is +4. Thus there is reduction of V from +5 to +4
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3 0
3 years ago
1) How much energy would be required to melt 15.0 g of ice at 0°C?
DerKrebs [107]

Answer:

5010J

Explanation:

The following data were obtained from the question:

Mass (m) = 15g

Heat of fusion (ΔHf) = 334J/g

Heat required (Q) =..?

The heat energy required to melt the ice can be obtained as follow:

Q = m·ΔHf

Q = 15 x 334

Q = 5010J

Therefore, the heat energy required to melt the ice is 5010J.

8 0
3 years ago
What is the volume of 55 grams of carbon dioxide at STP
e-lub [12.9K]

Answer:

A. 2.45 L - Answer my answers is right.

7 0
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Answer:

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