Chemistry: 1-15-09 Chemical Bonds & Covalent Bonding
CHEMISTRY: So why do they have to store hydrogen peroxide in brown bottles? Here’s the lecture from Thursday on the rest of the intro to chemical bonds and covalent bonding.

CHEMISTRY: So why do they have to store hydrogen peroxide in brown bottles? Here’s the lecture from Thursday on the rest of the intro to chemical bonds and covalent bonding.
January 15th, 2009 at 7:10 PM
HEY! Mkay so I’m doing my homework the question is what is the correlation between electronegativity and ionic character. I’m not really sure..aaaaah!
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January 15th, 2009 at 7:14 PM
heyy ms skinner. i have a question…when you say that you have to store hydrogen peroxide in a brown bottle casue it reacts when light hits it, how come it doesn’t when you open the bottle??
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January 15th, 2009 at 7:37 PM
Hey Audrey
I’m not exactly sure, but I think that it’s not a sudden reaction. The brown bottle is used to filter out light.
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January 15th, 2009 at 8:15 PM
hey how do atoms bond to other atoms.
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January 15th, 2009 at 8:27 PM
How much hydrogen would a bottle of hydrogen peroxide produce if all of it were exposed to sunlight?
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January 15th, 2009 at 9:14 PM
How fast will hydrogen peroxide separate into its different elements when light hits it?
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January 15th, 2009 at 9:38 PM
i have found it very interesting about how electrons share and steal and gain electrons from each other i never knew this was going on how awesome and enlightening ha
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January 15th, 2009 at 10:03 PM
well…my question is sort of dumb but it’s kinda bothering me. At the last study session you taught us a little trick going from group 17-15 is 1-3 but then there is that subtract 10 thing??? are they both dealing with valance electrons?? (just asking because of the dot notation thing)
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January 15th, 2009 at 10:10 PM
while we are all on the hydrogen peroxide thing… will it ruin if you open up the bottle i mean like shelby said i dont think its sudden but would every bit in the bottle be affected in some way?
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January 15th, 2009 at 10:43 PM
what is the difference between polar and non-polar covalent bonding?
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January 15th, 2009 at 11:51 PM
Well Nikki… The atoms that are included in Polar covalent bonds are pretty equal in size, and neither of the atoms over-power each other. In nonpolar covalent bonds, one atom is a lot stronger and it pulls harder on the smaller atom than the smaller one pulls on it. Wow.. not sure if that made sense! But I hope it helped… :]
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January 16th, 2009 at 12:05 AM
can someone explain to me the octet rule?
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January 16th, 2009 at 8:08 AM
To answere Nikkie’s question, nonpolar covalent bonds share electrons equally and polar covalent bonds don’t share them equally.
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January 16th, 2009 at 3:04 PM
what is an ionic bond?
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January 16th, 2009 at 3:06 PM
What are the two types of covalent bonds?
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January 16th, 2009 at 3:07 PM
Ok Trey:
there are polar covalent and non-polar covalent bonds.
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January 16th, 2009 at 3:10 PM
the answer to ashleys question is chemmial bonding that results from the electrical attraction btween cations and anions.
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January 16th, 2009 at 3:11 PM
what is the difference btween chemical and molecular bonds?
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January 16th, 2009 at 3:14 PM
JD: a chemical formula indicates the relative numbers of atoms of each kind in a chemical compound by using atomic symbols and numerical subscripts.
a molecular formula shows the types and numbers of atoms combined in a single molecule or molecular compound.
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January 16th, 2009 at 3:15 PM
what is bond strength?
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January 16th, 2009 at 3:56 PM
Mika:some of it would be the part that gets hit by the light but the part that doesnt i think would not be affected.
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January 16th, 2009 at 4:48 PM
Jake:
The octet rule states that an atom will gain, lose or share electrons in order to receive a full outer energy level (8 electrons)
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January 16th, 2009 at 4:49 PM
Rob: Bond strength is how attracted atoms are to each other. Bond strength depends on two things bond energy and bond lengths.
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January 16th, 2009 at 6:28 PM
nikie:
polar covalent is when the electrons are shared unevenly and nonpolar covalent is when the electrons are shared evenly
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January 16th, 2009 at 8:11 PM
what’s non-polar covalent bonding?
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January 17th, 2009 at 4:25 PM
Jen: non polar covalent bonding is when the electrons are shared evenly between the atoms
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January 17th, 2009 at 5:02 PM
what type of elements make up covalent bonds?
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January 17th, 2009 at 11:55 PM
How is a molecule formed?
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January 18th, 2009 at 9:10 PM
well its a day late i completely forgot to post with the project this weekend but you never know i might get some credit for this post =) sry i missed the due date..
so something to do with the class… o i know, how does the molecular bond determine the state of matter? liquid gas solid..
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February 3rd, 2009 at 6:16 PM
to answer Whitney’s last question…
Covalent bonds are formed between either:
Nonmetals & Nonmetals
or
Nonmetals & Metaloids
=]
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