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FromTheMoon [43]
3 years ago
9

How is a hydrogen bond different from the covalent bonds that connect each water molecule atoms? *?

Chemistry
1 answer:
kenny6666 [7]3 years ago
6 0
Electrons are shared between two ions in covalent bonds. Hydrogen bonding isn't a 'true' bond, as electrons aren't shared or exchanged. Instead, the hydrogen on one atom is strongly attracted to a highly electronegative atom (like F, O, N) on an adjacent molecule.  The result is a strong attractive force between the adjacent atoms.

FYI - this explains why a low molecular weight polar substance like water (H2O) has a significantly higher boiling point than other nonpolar molecules of similar molecular weight. More energy has to be added to the system to overcome the attractive forces between the molecules of water.
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On a mission to a newly discovered planet, an astronaut finds chlorine abundances of 13.85 % for 35cl and 86.15 % for 37cl. What
Evgen [1.6K]
<h3>Answer:</h3>

              36.70 amu

<h3>Solution:</h3>

Data Given:

                       Atomic Mass of ³⁵Cl  =  34.9700 amu

                       Natural Abundance of ³⁵Cl  =  13.85 %

                       Atomic Mass of ³⁷Cl  =  36.9700 amu

                       Natural Abundance of ³⁷Cl  =  86.15 %

Formula Used:

Average Atomic Mass  =  [(Atomic Mass of ³⁵Cl × Natural Abundance of ³⁵Cl) + (Atomic Mass of ³⁷Cl × Natural Abundance of ³⁷Cl)] ÷ 100

Putting values,

Average Atomic Mass  =  [(34.9700 × 13.85) + (36.9700 × 86.15)] ÷ 100

Average Atomic Mass  =  [(484.3345) + (3184.9655)] ÷ 100

Average Atomic Mass  =  3669.3 ÷ 100

Average Atomic Mass  =  36.70 amu

8 0
3 years ago
In a particular enzyme, an alanine residue is located in a cleft where the substrate binds. A mutation that changes this residue
TiliK225 [7]

Explanation:

There are non-polar side chains also present in alanine. And, these non-polar side chains are involved in some hydrophobic interactions in active sideand then it changes into polar amino acid glutamate that will destroy the hydrophobic interaction.

Whereas in glycine there is only hydrogen present in the side chain therefore, it will not affect much.

5 0
3 years ago
Acid rain is a type of pollution caused mainly from
Aleksandr-060686 [28]

Answer:

im pretty sure its the second one

4 0
3 years ago
Which is the best example of how electromagnetic energy is used in everyday life
mixas84 [53]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

The best example of how electromagnetic energy is used in everyday life is <span>a patient receiving an X-ray in a hospital</span>
6 0
3 years ago
Read 2 more answers
This question is about metal oxides. When sodium is heated in oxygen, sodium oxide is produced.
vodomira [7]

Answer:

This is very easy Cuz We have 2Na2O We have O2 so thats molecule of Oxygen and its same on product We need to balance Na on start We have 1 on product We have 2 so Just put 2 at start....

Explanation:

Sorry for bad english not my first language :(

2Na+O2-->2Na20

5 0
3 years ago
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