Jerome's answer to Sonia's Junior College 1 H2 Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Jerome
Jerome's answer
19 answers (Tutor Details)
1st
Are the answers correct?
Sonia
Sonia
4 years ago
yes they are, Thank u:)
Sonia
Sonia
4 years ago
May i clarify one point ? I m not sure how come there’s a new variable x introduced in the table ^^ What does it mean? Thank u!
Jerome
Jerome
4 years ago
Because the change in amt of the products and reactants are also unknowns. But because u know that they must have the same ratio as the chemical equation, u can relate them with a single variable x.