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Nuetrik [128]
3 years ago
14

Which molecule has a tetrahedral arrangement of electron pairs but is not a tetrahedral molecule?

Chemistry
2 answers:
Rashid [163]3 years ago
8 0

Answer:

Water

Explanation:

Electron geometry (arrangement) is tetrahdral but its molecular geometry is bent.

Oxygen has 6 electrons in the outermost shell but it only uses 2 electrons for forming bonds with 2 Hydrogen atoms. The oxygen atom - center atom is surrounded by four electron pairs (2 pairs with 2 Hydrogen atoms, 2 lone pairs) so that its shape is tetrahedral. In contrast, it's supposed to be linear shaped but in fact it has bent molecular geometry due to lone pairs repel other electron pairs more strongly than bonded electrons.

MariettaO [177]3 years ago
5 0
Water

This is due to the fact that the oxygen atom in water also contains two lone pairs of electrons.
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What mass of H2 is needed to react with 8.75 g of O2 according to the following equation: O2(g) + H2(g) → H2O(g)?
Alika [10]

Answer:- B: 1.10g H_2 is the right answer.

Solution:- The balanced equation is:

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We have been given with 8.75 grams of oxygen and asked to calculate the grams of hydrogen needed to react with given grams of oxygen according to the balanced equation.

From balanced equation, 1 mole of oxygen reacts with 2 moles of hydrogen.

So, let's convert grams of oxygen to moles and multiply it by the mole ratio to calculate the moles of hydrogen that are easily converted to grams on multiplying by it's molar mass.

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7 0
3 years ago
Read 2 more answers
HELP ASAP 20 OR MORE POINTS!!!!
pishuonlain [190]
<h2>YeS im Am fRom pLanet k12 And brinG anD imPortant MesSage </h2>

  • The answer to your question is, <u><em>There are only so many ways matter can arrange itself within that infinite universe.</em></u>

<h2><em>Also if your on the same test as me heres some other sTuff that was on my test </em></h2><h2><em> </em></h2>

 Question 1 (1 point)  

In Brian Greene's "A Physicist Explains Why Parallel Universes May Exist", what reason does Greene give for why he believes parallel universes may exist?

  • <em>Answer: There are only so many ways matter can arrange itself within that infinite universe.</em>

<em>   </em>

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From the video " Are Wormholes The Answer To Time Travel?", how are worm holes described?

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Question 5 (1 point)  

Many scientists think human cloning is possible, so why haven't we made human clones yet?

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<h2><em>HOPE THIS HELPS ANYONE IF IT DOES THANK AND RATE FOR A FREE COOKIE :D </em></h2>
6 0
3 years ago
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