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sergeinik [125]
3 years ago
8

As shown in the image above, the Earth's outermost layer is divided into several tectonic plates. Which of the following is true

about these plates?
A.
The plates move either toward or alongside each other, but not away from each other.

B.
Some plates move toward each other, while others move away from or alongside each other.

C.
All of Earth's tectonic plates move toward each other.

D.
All of Earth's tectonic plates move away from each other.
Chemistry
1 answer:
Tems11 [23]3 years ago
7 0
The answer is B.) Some plates move toward each other, while others move away from or alongside each other.


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How many hydrogen atoms are in 35.0 grams of hydrogen gas? How many hydrogen atoms are in 35.0 grams of hydrogen gas? 4.25 × 102
Ede4ka [16]

Answer: 2.12\times 10^{25} atoms of hydrogen are there in

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Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}=\frac{35.0g}{2g/mol}=17.5moles

1 mole of hydrogen (H_2) = 2\times 6.023\times 10^{23}=12.05\times 10^{23} atoms

17.5 mole of hydrogen (H_2) = \frac{12.05\times 10^{23}}{1}\times 17.5=2.12\times 10^{25} atoms

There are 2.12\times 10^{25} atoms of hydrogen are there in

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8 0
3 years ago
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