Sunday
April 20, 2014

Posts by Karina


Total # Posts: 106

Chm
Air is about 78.0% nitrogen molecules and 21.0% oxygen molecules. Several other gases make up the remaining 1% of air molecules.What is the partial pressure of nitrogen in air at atmospheric pressure (1 atm)? Assume ideal behavior.

Chemistry
So we have a question for chem. homework and i really don't understand. can you please explain it..... Question:There is a change in the type of oxides formed with the period three elements. Indicate the type of compounds formed (ionic, amphoteric, covalent) when the perio...

Science
north and south america

Chemistry
So we have a question for chem. homework and i really don't understand. can you please explain it..... Question:There is a change in the type of oxides formed with the period three elements. Indicate the type of compounds formed (ionic, amphoteric, covalent) when the perio...

Geography
Erghh I need this too I am having trouble writing it ... If someone can help!! This information from Wikipedia doesn't help that much...

spelling
thank you guys sooo very much. I can't belive everyone has the same homework as me. Thanks again soooo much. Love Karina =]

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