
Post Test: Module 3 SCI10-Science 10 4Q KNHS
Quiz by Jerald U. Carilla
Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
1. Which type of chemical reaction is involved once you turned on the gas stove?
2. Which is NOT TRUE about the Law of Conservation of mass?
3. How can we say that a chemical reaction took place between reactants?
4. Determine the type of chemical reaction: H2O (l) + MgO (s) → Mg(OH)2 (s)
5. Determine the type of chemical reaction: 2NaCl (s) + F2 (g) → 2NaF (s) + Cl2 (g)
6. Determine the type of chemical reaction: 2NaClO3 (s) → 2NaCl (s) + 3O2 (g)
7. Determine the type of chemical reaction: 3Ba (s) + Cr2O3 (s) → 3BaO (s) + 2Cr (s)
8. What numerical coefficients are needed to balance the equation: ___CH4 (g) + ___O2 (g) → ___CO2 (g) + ___H2O (g)
9. What numerical coefficients are needed to balance the equation:___CaCO3 (s) + ___ HCl (aq) → ___ CaCl2 (aq) + ___ CO2 (g) + ___ H2O (l)
10. If I want to use a wire to hang my plants, which will last longer: an iron wire or a copper wire? Why?