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Marta_Voda [28]
2 years ago
6

What's the most unreactive metal?​

Chemistry
1 answer:
Simora [160]2 years ago
6 0

Answer:

gold and platinum

Explanation:

Very unreactive metals, such as gold and platinum, are found in the Earth's crust as pure metals. These are called native metals.

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Answer:

C. The balloon with CH4 has the same moles of gas molecules as the balloon with H2

Explanation:

Based on combined gas law, gases under the same pressure, temperature and volume have the same number of moles. With this information we can say the rigth statement is:

<h3>C. The balloon with CH4 has the same moles of gas molecules as the balloon with H2</h3>
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Zinc oxide adopts a face-centered cubic arrangement. Both Zinc ions and oxide ions adopt the face-centered cubic arrangement; wi
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5.41 ×10⁻²²

Explanation:

We were told right from the question that both the Zinc ions and the Zinc oxide adopts a face-centered cubic arrangement.

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The mass of one unit cell of zinc oxide can be calculated as:

= \frac{4*81.38}{6.023*10^{23}}

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Which phrase best describes a period on the periodic table?
telo118 [61]

Answer:

<u>d. a row of elements</u>

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.

3 0
3 years ago
What five SI base units are commonly used in chemistry?
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