Which of the following chemical equations demonstrates the law of conservation of mass? A. BaCl? + H?SO4 ? BaSO4 + HCl B. Cl? + NaBr ? NaCl + Br? C. 2H? + N? ? 2NH3 D. 2H? + O? ? 2H?O Transcribed Image Text:Which of the following chemical equations demonstrates the law of conservation of mass? A. BaCl? + H?SO4 ? BaSO4 + HCI B. Cl? + NaBr-NaCl + Br? C. 2H? + N?2NH3 D. 2H? + O? ? 2H?O