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bio question

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zorbazdeer
Posts: 194 - Karma: 10
okay i have this take home test for biology, and i cant find one of the questions anywhere. The question is 'molecules that are (blank) dissolve best in water.' a-polar, b-non polar, c-ionic, or d- covalent.

anyone know this?
Oct 13 2004 8:33PM
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Freeskier22
Posts: 991 - Karma: 19
non polar


Peace
Oct 13 2004 8:34PM
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zorbazdeer
Posts: 194 - Karma: 10
are you positive?
Oct 13 2004 8:35PM
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Freeskier22
Posts: 991 - Karma: 19
acrtually i have no fuuckin idea sorry


Peace
Oct 13 2004 8:35PM
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Melvs
Posts: 15174 - Karma: 480
non polar.
-Pat Melvin
Oct 13 2004 8:35PM
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skiierman
Posts: 28699 - Karma: -5,563
Def. 'C'... No wait... 'A' Yeah it's A... Or maybe it's 'B'... Well it definitly isn't 'D'... or is it? Hmmmmm...



----2ond in Command of DANSA-----

To Huck. v. The act of throwing oneself off of a cornice, cliff, rock, or any other thing that results in an attempt to fly.

If you can't dazzle them with brilliance, baffle them with bullshit.
Oct 13 2004 8:36PM
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zorbazdeer
Posts: 194 - Karma: 10
are u sure its non polar? i need to get this right
Oct 13 2004 8:36PM
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skiierman
Posts: 28699 - Karma: -5,563
^ DUDE! I AM RIGHT! OK??? Just trust me on this.



----2ond in Command of DANSA-----

To Huck. v. The act of throwing oneself off of a cornice, cliff, rock, or any other thing that results in an attempt to fly.

If you can't dazzle them with brilliance, baffle them with bullshit.
Oct 13 2004 8:36PM
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Freeskier22
Posts: 991 - Karma: 19
im really good at guessing, mels sounds like he knows waht he is talking about so i would go with non polar, final answer=1 more person agreeing


Peace
Oct 13 2004 8:37PM
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zorbazdeer
Posts: 194 - Karma: 10
im not a dude...and i dont think i trust you
Oct 13 2004 8:37PM
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*i<3snow*
Posts: 6440 - Karma: 41
polar... we just finished this unit in bio, and water molecules are polar. so that would make most sence...




~*Michelle

->'the CD goes right here. the speakers...oh well one of 'em's broken, but THIS speaker is good, and these wires, they are really good!'

'I dont think rich will ever be an insult. That's like calling someone pretty and trying to offend them.' *ICE-IS-SCARY



Oct 13 2004 8:38PM
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Melvs
Posts: 15174 - Karma: 480
< ahref=http://jhss.wrdsb.on.ca/library/html/assignments/science/bond2.htm'>http://jhss.wrdsb.on.ca/library/html/assignments/science/bond2.htm


you didn't look very hard...
-Pat Melvin
Oct 13 2004 8:39PM
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meb9486
Posts: 740 - Karma: 10
well water is a plar molecule and i will also tell you it def. isnt C or D, so enjoy
__________________
'Over time, most people experience life involving love, suffering, compassion and an unspeakable drive for something new...For me there's skiing, nothing more nothing less and it encompasses everything, everyday I'm out there.'
-Pep Fujas-
Oct 13 2004 8:39PM
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skiierman
Posts: 28699 - Karma: -5,563
^ Ok, DUDETTE! TRUST ME OK!? IF YOU WANT TO PASS YOU NEED TO TRUST ME!!!



----2ond in Command of DANSA-----

To Huck. v. The act of throwing oneself off of a cornice, cliff, rock, or any other thing that results in an attempt to fly.

If you can't dazzle them with brilliance, baffle them with bullshit.
Oct 13 2004 8:39PM
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*i<3snow*
Posts: 6440 - Karma: 41
ionic and covalent bonds have nothing to do w/ that question. im 96 percent sure...




~*Michelle

->'the CD goes right here. the speakers...oh well one of 'em's broken, but THIS speaker is good, and these wires, they are really good!'

'I dont think rich will ever be an insult. That's like calling someone pretty and trying to offend them.' *ICE-IS-SCARY



Oct 13 2004 8:39PM
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GhostfaceKillah
Posts: 3398 - Karma: 10
uhhhhhhhhh im pretty sure ionic molecules dissolve in water... but then again i failed chemistry
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Member # 2038
Oct 13 2004 8:39PM
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Melvs
Posts: 15174 - Karma: 480
http://jhss.wrdsb.on.ca/library/html/assignments/science/bond2.htm


you didn't look veyr hard. I typed in 'polar dissolves' and that was the third result.
-Pat Melvin
Oct 13 2004 8:40PM
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meb9486
Posts: 740 - Karma: 10
well im glad he asked a chemistry question b/c u failing chemistry helps a lot with this BIO Question
__________________
'Over time, most people experience life involving love, suffering, compassion and an unspeakable drive for something new...For me there's skiing, nothing more nothing less and it encompasses everything, everyday I'm out there.'
-Pep Fujas-
Oct 13 2004 8:40PM
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Melvs
Posts: 15174 - Karma: 480
polar dissolves in polar... water is polar. therefore the answer is POLAR.

I was wrong.
-Pat Melvin
Oct 13 2004 8:42PM
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zorbazdeer
Posts: 194 - Karma: 10
^ well at first u said non polar..but thanks for the answer!
Oct 13 2004 8:43PM
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Chief_Blaze
Posts: 86 - Karma: 10
its C - ionic - i got a brain with a 3rd year bio chem career
Oct 13 2004 8:46PM
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zorbazdeer
Posts: 194 - Karma: 10
^ gah now i dont know who to believe
Oct 13 2004 8:47PM
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Chief_Blaze
Posts: 86 - Karma: 10
When compounds with ionic bonds are put into water, the ions come apart and dissolve in the water.
Oct 13 2004 8:48PM
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Melvs
Posts: 15174 - Karma: 480
look at the link I posted... that's why I said what I did.
-Pat Melvin
Oct 13 2004 9:01PM
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NBCskier
Posts: 3877 - Karma: -289
ionic
Oct 13 2004 9:02PM
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proZach
Posts: 7163 - Karma: 919
its definately not ionic (thats between metal and non-metal and are in fact weak in water). covalent bonds share bonds. they are between 2 non-metals. polar are unequal sharing and non=polar are equal sharing. acording to my notes from last year (i saved ap bio for some reason), h20 has polar bonds (hydrogen bonds). this is what i can say. i think its right.





(zach)




HOMER - im gonna go warm up the car
MARGE - they've only thrown one pitch
HOMER - and it sucked.
Oct 13 2004 9:07PM
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proZach
Posts: 7163 - Karma: 919
^o yea, and i got a 4 on my ap test, so its probably right. advice-dont take ap us history unless you have an easy teacher....





(zach)




HOMER - im gonna go warm up the car
MARGE - they've only thrown one pitch
HOMER - and it sucked.
Oct 13 2004 9:08PM
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Raoul_Duke
Posts: 584 - Karma: 17
likes disssolve likes

Oct 13 2004 9:17PM
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Chief_Blaze
Posts: 86 - Karma: 10
otto is otto backwards
Oct 13 2004 9:27PM
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TheArtistFormerlyKnownAsJik
Posts: 622 - Karma: 20
salt (NaCl) possess an ionic bond ... I think that salt may be soluble in water.

it is a chem question as well, not just a bio question.



I was born, a six gun in my hand...they call me Bad Company

We're the dream warriors! Don't wanna dream no more!--Dokken
Oct 13 2004 9:36PM
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Chief_Blaze
Posts: 86 - Karma: 10
water is extremeley polar and since like disolves like polar molecules will but also ionic molecules have dipoles so they will to

i think the answer is ionic
Oct 13 2004 10:01PM
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skibunnie
Posts: 1756 - Karma: 14
its polar. i'm 100% certain.
Oct 13 2004 11:34PM
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EastCoastPride
Posts: 11654 - Karma: 4,989
4 on your AP test. cool. i got a 5. the answer is polar.


-teddy
WWTJSD?
Oct 13 2004 11:44PM
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supervore
Posts: 613 - Karma: 10
polar is the answer

When the table salt molecules go into water, they go in as Na+Cl- molecules. These molecules are strongly polar, since one half is very positive and the other is very negative. The O side of the water molecules (which are partially negative) orient themselves toward the positive sodium ions. At the same time, the H sides of the water molecules begin to orient themselves toward the negative chloride ions. As the water begins to surround the ionic halves of the salt molecule, the charges on each ion are now being accomodated by the partial charges of the water molecules, and the two ions are less and less attracted to each other. This culminates in a breaking apart of the salt molecule, and a complete surrounding of each ion by water.

this basically shows an example of a polar molecule in water, which did dissolve. non polar molecules don't break up in water, and i am 100% sure since i double checked my answer for you.
Oct 14 2004 7:38AM
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*i<3snow*
Posts: 6440 - Karma: 41
^yep. polar. its right... so you better choose it!




~*Michelle

->'the CD goes right here. the speakers...oh well one of 'em's broken, but THIS speaker is good, and these wires, they are really good!'

'I dont think rich will ever be an insult. That's like calling someone pretty and trying to offend them.' *ICE-IS-SCARY



Oct 14 2004 7:42AM
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t-roy
Posts: 4041 - Karma: 52
polar dissolves polar...BUT...what about NaCl, that dissolves pretty stink'n well in water

my final answer is..you shouldn't ask the people on newschoolers this question, just look in your bio book eh
-------

I shall be pinch'd to death- Shakespeare
Oct 15 2004 1:12PM
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