Wednesday
March 4, 2015

Homework Help: Chemistry

Posted by Rebekah on Saturday, September 11, 2010 at 5:37pm.

.Question part Points Submissions 1
0/0.5
2/3
Total 0/0.5 ...In the explosion of a hydrogen-filled balloon, 0.75 g of hydrogen reacted with 6.9 g of oxygen to form how many grams of water vapor? (Water vapor is the only product.)


i already posted this but i dont think people understood. isnt it because the law of conservation of mass that u just add the grams? but then i tried that and it was wrong. please help!

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