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Which equation is obeying the Law of Conservation of Mass? A. Cu + H2SO4 → CuSO4 + H20+ SO2 B. 4Cu + S8 + 8Cu2S C. 2Fe + 302 → Fe203 D. 2Na + 2H20 → 2NaOH + H2
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Which equation is obeying the Law of Conservation of Mass?

A. Cu + H2SO4 → CuSO4 + H20+ SO2
B. 4Cu + S8 + 8Cu2S
C. 2Fe + 302 → Fe203
D. 2Na + 2H20 → 2NaOH + H2

User Than
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2Na + 2H2O → 2NaOH + H2

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Step-by-step explanation:

because same number of molecules are on both sides of reaction

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User Kawa
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