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lubasha [3.4K]
4 years ago
10

1.

Chemistry
1 answer:
natta225 [31]4 years ago
4 0
The Moon completes one orbit around the Earth in approximately 27 1/3 days and completes one cycle of its phases in approximately 29 1/2 days. The correct option among all the options that are given in the question is the second option. I hope that this is the answer that has come to your great help.
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HELPPPPPPPPPPPPP ME PLSSSSSSSSSSS
Pani-rosa [81]

Answer:

Option B: cooling as the lava runs down the mountain

Explanation:

The point R is basically at near the Earth's surface.

Now, we are told that rocks melt underground to form magma. This is a process of formation of igneous rocks. So, in formation of igneous rocks another process that will contribute to formation of rocks at point R is named cooling.

Cooling is a process where the larva runs down the mountain that makes magma hardened and makes it it turn into igneous rock.

6 0
3 years ago
Which of the following properties decrease from left to right across a row in the periodic table?
Marta_Voda [28]

Answer:

atomic radii is your answer I hope

Explanation:

3 0
3 years ago
2. How many kilometers are in 8432 meters?
Delicious77 [7]

Answer:

8.432 Kilometers

Explanation:

This is the answer because 1 kilometer equals to 1,000 meters:

1) Divide 8432 with 1,000

2) Once you divide, you will get 8.432 as your answer

Hope this helps!

3 0
3 years ago
Why do organisms evolve?
Mekhanik [1.2K]

Answer:B

Explanation:

Natural Selection

5 0
3 years ago
How much energy in kilojoules is released when 23.4 g of ethanol vapor at 83.0 ∘C is cooled to -15.0 ∘C ?
slamgirl [31]

Answer : The amount of in kilojoules released is, -5.53 kJ

Explanation :

Formula used :

q=m\times c\times (T_{final}-T_{initial})

where,

q = heat released = ?

c = specific heat of ethanol = 2.41J/g^oC

m = mass of ethanol = 23.4 g

T_{final} = final temperature = -15.0^oC

T_{initial} = initial temperature = 83.0^oC

Now put all the given values in the above formula, we get:

q=23.4g\times 2.41J/g^oC\times (-15.0-83.0)^oC

q=-5526.612J=-5.53\times 10^3J=-5.53kJ

Therefore, the amount of in kilojoules released is, -5.53 kJ

5 0
4 years ago
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