Which law states mass is neither created nor destroyed? 👤 By TheQuizWire ✅ Fact Checked 📊 Difficulty Easy 📅 Last Updated 01 Dec 2025 A. Avogadro's B. Gay-Lussac's C. Conservation of Mass D. Definite Proportions Check Answer 💡 Explanation: The Law of Conservation of Mass states matter is conserved in a chemical reaction. 📚 Topics: Chemistry Science 🎯 Exams: CSS GEN NTS PMS