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andre [41]
3 years ago
12

Which of the following best describes the bonding found within Al2O3?

Chemistry
1 answer:
Alex787 [66]3 years ago
5 0

Answer:

C). Electrostatic attractions between + and - charged ions.

Explanation:

They're electrostatic attractions because it is electrovalent bonding.

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A gas mixture contains 1.61 moles of hydrogen and 2.31 moles of oxygen. What is the mole fraction of oxygen?
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Answer: option B. 0.59

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3 years ago
How many moles of NaCl are produced if 239.7 grams of Na2S reacts with plenty of AlCl3?
lana66690 [7]

Answer:

6.142 moles of NaCl

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

2AlCl3 + 3Na2S —> Al2S3 + 6NaCl

Next, we determine the number of mole in 239.7 g of Na2S. This is illustrated below:

Mass mass of Na2S = 78.048g/mol

Mass of Na2S = 239.7g

Number of mole Na2S =..?

Mole = Mass /Molar Mass

Number of mole Na2S = 239.7/78.048 = 3.071 moles

Finally, we can obtain the number of mole of NaCl produced from the reaction as follow:

From the balanced equation above,

3 moles of Na2S reacted to produce 6 moles of NaCl.

Therefore, 3.071 moles of Na2S will react to produce = (3.071 x 6)/3 = 6.142 moles of NaCl

3 0
3 years ago
How many Atoms are in 12 NaBr
frozen [14]

Answer:

there are 12 atoms in 12 sodium bromide

7 0
2 years ago
How many moles of chlorine gas would occupy a volume of 35.5 L at a pressure of 100.0 kPa and a
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4 0
3 years ago
What is the molar mass of H2(SO4)3?​
nalin [4]

Answer:

Explanation:

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7 0
3 years ago
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