(Solved by Humans)-A) consider the following balanced equation: 2H 2 +O 2 -2H 2 O.
Question
A) consider the following balanced equation: 2H2 +O2 -2H2 O. if 5.0 grams of H2 reacts completely with O2 , how many grams of H2O will be produced? ( the atomic masses of the elements involved are: H=1.0 amu and O=16.0 amu.)
B) the mass of an iron bolt was 5.4 grams when it was manufactured. after being bolted to an outdoor structure for several months, the mass of the bolt was found to have increased by 0.2 grams. given the following balanced equation, does the example support the law of conservation of mass? why or why not?
4Fe+3 O2 -2Fe2O3.
c) SiO2
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