Monday
December 5, 2016

Posts by nor

Total # Posts: 5

science
1.5173 g of organic iron compound containing FE , C ,H and O is burnt in oxygen gas produced 2.838 g OF carbon dioxide and 0.8122 g of water. In separate experiment to determine the mass % of iron, 0.3355 g of the compound yielded 0.0758 g iron (II) oxide. Determine the ...
June 28, 2016

Chemistry
2Li + Cu(NO3) > 2LiNO3 + Cu
May 15, 2015

Science
For a BOD5 Test: 1) why water samples needed dilution 2) How to check the test accuracy 3) Under what conditions, the water sample needs"seed"? anyone can help, please.
December 1, 2013

Chemistry
15.625mL
July 10, 2013

social studies
what are the recent findings on studies about homework
May 14, 2008

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