I needz helpz on me chemistweeeeee

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thread starter chaostheory Mar 09 2010 + PM | QUOTE | PERMALINK | REPORT

sup everyone i need some help in chem. i have a test in the afternoon and i know nothing about it. anyways i have a few questions xP, so we have these questions and the question is: which molecule is most polar and the choices are h2o, h2s, h2Se, h2Te. how can i do this question? does it invovle inozation? xP further on, this might sound silly but is it possible to have a polar bond with a nonpolar covalent bond or a nonpolar with a polar covalent bond? thank you for your help:D enjoy ur day

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Alittlekid 03/09/10 + PM | QUOTE | PERMALINK | REPORT

Have you tried google ?

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chaostheory 03/09/10 + PM | QUOTE | PERMALINK | REPORT

yeah but they such complicated things that i get more confused xD

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Alittlekid 03/09/10 + PM | QUOTE | PERMALINK | REPORT

Well i wouldn't know im only in grade 8.

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chaostheory 03/09/10 + PM | QUOTE | PERMALINK | REPORT

[quote] Alittlekid : Well i wouldn't know im only in grade 8. [/quote] xDDDDDDDDDDDDDDDDDDDDD cmon can anyone help a ppoor bud out?

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han607 03/09/10 + PM | QUOTE | PERMALINK | REPORT

i think the answer is h20 i'm pretty sure

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RJustice 03/09/10 + PM | QUOTE | PERMALINK | REPORT

h20, you know because its general knowledge. Charge seperation occurs in the h2o, which is so strong that it can seperate the other compounds. I don't understand your 2ndquestion

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chaostheory 03/09/10 + PM | QUOTE | PERMALINK | REPORT

[quote] han607 : i think the answer is h20 i'm pretty sure [/quote] well yeah it is, my friend just told me :D but i need to know why its water :/

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RJustice 03/09/10 + PM | QUOTE | PERMALINK | REPORT

H+ has a slight positive charge and O- has a slight negative charge (you gotta remember, they are ions after combining). So they exhibit a slight attraction to other ions, in different compounds. This phenomenon is most in water, so thats why. It's also the reason that water is a universal solvent

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chaostheory 03/09/10 + PM | QUOTE | PERMALINK | REPORT

so what is the most polar molecule in the whole world?

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mazarak 03/09/10 + PM | QUOTE | PERMALINK | REPORT

i only know grade 11 chem srry

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chaostheory 03/09/10 + PM | QUOTE | PERMALINK | REPORT

Ugh w/e atleast ill get a 90 plus on this test

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RJustice 03/09/10 + PM | QUOTE | PERMALINK | REPORT

It's water I told you already

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SweNL 03/09/10 + PM | QUOTE | PERMALINK | REPORT

Stop joking with us

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BloodmetalX + PM | QUOTE | PERMALINK | REPORT

Hey this is the same stuff Im doing :D Yr 11 IB SL? Anyway, the degree of polarity depends on the difference in electronegativities between the atoms so since hydrogen is the least electronegative and oxygen is one of the most electronegative (well the most electronegative on there) the answer is H2O Hope I helped :P EDIT: No it does not involve "inozation" (lolol) and you cant have polar nonpolar covalent bonds (xD) its either one or the other good luck getting 90 if you dont even knwo this stuff haha xD

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