Arnold K H Tan's answer to Jonathan Koh's Secondary 3 Chemistry Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Arnold K H Tan
Arnold K H Tan's answer
2163 answers (A Helpful Person)
1st
Always balance in this order, which works for all equations that involve ionic compounds:
1. Metal or positive ion on the right
2. Negative ion next to item 1) above
3. All other substances that have not been balanced.
This is illustrated for part d. Added an extra part e) for reference.