oliviamyprecious oliviamyprecious

11-11-2020
Chemistry

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Which of the following equations demonstrates the law of conservation of mass?
Mg + O2 ---> MgO
Ca + F2 --> CaF
Li + N3 --> Li3N
4Na + O2 ---> 2Na2O

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Armalinda Armalinda

11-11-2020

Answer:

Mg + O2 ---> MgO

Explanation: V2O5 + CaS → CaO + V2S5. 5V2O5 + 5CaS → 10CaO + 5V2S5. 3V2O5 + 3CaS → 3CaO + 3V2S5.

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