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Akimi4 [234]
3 years ago
12

Which description below correctly describes the hydrogen bonding between water molecules?

Chemistry
1 answer:
MariettaO [177]3 years ago
5 0

Answer:

c.the slightly positive oxygen on one water molecules is attracted to a slightly negative hydrogen on another molecule of water

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Medicinal “ether" is produced when ethyl alcohol is treated with an acid. How many grams of
DochEvi [55]

Answer:

34.3 g

Explanation:

Step 1: Write the balanced equation

2 CH₃CH₂OH ⇒ CH₃CH₂OCH₂CH₃ + H₂O

Step 2: Calculate the moles corresponding to 50.0 g of CH₃CH₂OH

The molar mass of CH₃CH₂OH is 46.07 g/mol.

50.0 g × 1 mol/46.07 g = 1.09 mol

Step 3: Calculate the theoretical moles of CH₃CH₂OCH₂CH₃ produced

The molar ratio of CH₃CH₂OH to CH₃CH₂OCH₂CH₃ is 2:1. The moles of CH₃CH₂OCH₂CH₃ theoretically produced are 1/2 × 1.09 mol = 0.545 mol.

Step 4: Calculate the real moles of CH₃CH₂OCH₂CH₃ produced

The percent yield of the reaction is 85%.

0.545 mol × 85% = 0.463 mol

Step 5: Calculate the mass corresponding to 0.463 moles of CH₃CH₂OCH₂CH₃

The molar mass of CH₃CH₂OCH₂CH₃ is 74.12 g/mol.

0.463 mol × 74.12 g/mol = 34.3 g

6 0
3 years ago
Atoms of which element have two protons and two electrons?
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B.) Helium have <span>two protons and two electrons

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6 0
3 years ago
Covalent bonding is the ____ of electrons​
taurus [48]

Answer: sharing

Reason: They do this to gain stability. The reason they don’t actually transfer is because the difference in electronegativity values are above a certain value.

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What is the net force on this box?<br> A.) 0<br><br> B.) 45<br><br> C.)25<br><br> D.)90
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Answer:

D

Explanation:

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3 years ago
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