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Vilka [71]
3 years ago
5

How many oxygen atoms are in 7.90 g of Al2(SO4)3?

Chemistry
1 answer:
Zanzabum3 years ago
6 0
The answer to your question is 55,600,000,000,000,000,000,000atoms
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2. Which of the following does not have a nucleus? a. prokaryotes b. eukaryotes c. prokaryotes and eukaryotes ​
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Answer:

Erythrocytes

Erythrocytes do not contain a nucleus. This would make answer choice "A" correct. Erythrocytes are red blood cells and these cells differ from the other cells of the body because of the absence of the nucleus. All the other cells noted have nuclei.

Explanation:

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What is an alloy?<br> Answer question 2 if you want.
Anna11 [10]

Answer:

An alloy is a combination of metals or metals combined with one or more other elements. For example, combining the metallic elements gold and copper produces red gold, gold and silver becomes white gold, and silver combined with copper produces sterling silver. Elemental iron, combined with non-

Explanation:

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3 years ago
How many grams of mercury can be produced if 18.0 g of mercury (11) oxide decomposes?
NARA [144]

Answer:

18.0 g of mercury (11) oxide decomposes to produce 9.0 grams of mercury

Explanation:

Mercury oxide has molar mass of 216.6 g/ mol. It gas a molecular formula of HgO.

The decomposition of mercury oxide is given by the chemical equation below:

2HgO ----> 2Hg + O₂

2 moles of HgO decomposes to produce 1 mole of Hg

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433.2 g of HgO produces 216.6 g of Hg

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Therefore, 18.0 g of mercury (11) oxide decomposes to produce 9.0 grams of mercury

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2 years ago
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