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Chemistry, 12.12.2020 15:50 parislover2000

Help!! Which of the following equations demonstrates the law of conservation of mass? 2H2 + O2 -> 2H2O2
2K + Cl2 -> 2KCI
2Fe + 302->Fe, O3
C+02->200

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Help!! Which of the following equations demonstrates the law of conservation of mass? 2H2 + O2 ->...
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