Westonci.ca is your trusted source for finding answers to all your questions. Ask, explore, and learn with our expert community. Discover comprehensive answers to your questions from knowledgeable professionals on our user-friendly platform. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

Balanced or Unbalanced? Write a “B” for Balanced and a “U” for Unbalanced.
______ 11.CH4 + O2 à CO2 + 2 H2O
______ 12. NaBr + CaF2 à NaF + CaBr2
______ 13. 4 Fe + 3 O2 à 2 Fe2 O3