Which of the following equations best describes the law of conservation of mass?

Last updated: 8/7/2022

Which of the following equations best describes the law of conservation of mass? KCl(aq) + AgNO3(aq) AgCl(s) + KNO3(aq) H₂ (g) + O₂ (g)→ H₂O₂ (g) H₂O₂ (g)→ H₂O(g) + O₂(g) KCl(aq) + Ag₂NO3 (aq) → AgCl(s) + KNO3(aq)