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Novay_Z [31]
3 years ago
5

Which of these is NOT a cause of the heat inside Earth?

Chemistry
2 answers:
Andrei [34K]3 years ago
6 0

Answer:

Bombardment by asteroids

Explanation:

All of the other ones explain themselves

Sergio039 [100]3 years ago
3 0
The answer would be: D
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15g of magnesium (II) oxide decomposes, find the number of oxygen particles produced at 100% yield.
erastova [34]

2.258625 *10²³ oxygen atoms will be produced.

<h3><u>Explanation:</u></h3>

Decomposition reaction is defined as the type of reaction where one single reactant breaks to produce more than one product only by means of heat or other external factor.

Formula of magnesium oxide = MgO.

The molecular mass of magnesium oxide = 24 +16= 40.

So in 40 grams of magnesium oxide, number of molecules is 6.023 * 10²³.

So in 15 grams of magnesium oxide,, number of molecules is 6.023 *1023 * 15/40 = 2.258625 *10²³.

From one molecule of magnesium oxide, one oxide atom will be produced.

So number of oxide atoms with 100% yeild = 2.258625 *10²³

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3 years ago
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Which correctly lists three characteristics that are used to describe alr?
Art [367]

Answer:

pressure altitude and radiation

Explanation:

beacuse in atmosphere there is aire pressure atmospheric pressure and ofcourse radiation is there as well as altitude at heights

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What determines the velocity of an object
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