# The_Law_of_Conservation_of_Matter_Notes - The Law of...

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The Law of Conservation of Matter (LT 2)The law of conservation of matter states:How do we prove this law?STEP 1-STEP 2-STEP 3-H2+O2ÆH2OFe+H2OÆFe3O4+H2Balance the reaction2 H2 + O2 = 2 H20Any system closed to all transfers of matter and energy, the mass ofthe system must remain constant over time, as system mass cannotchange quantity if it is not added or removedAdd up the mass on each side of the arrow, they should be equalH 4 X 11 = 4gO 2 x 16 = 32gH 4 x 1 = 4gO 2 x 16 = 32g= 36Determine the molar mass of each compound.3Fe + 4H2O = Fe3O4 + 4H2Fe 3 x 56 = 168H8x 1= 8O4 x 16 = 64Fe 3x56=168O4x16=64H 8x1=8
1)Al2O3ÆAl+O22)C2H6+O2ÆCO2+H2O3)Al+Br2ÆAl Br34)Li+H2OÆ
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