Which of the following demonstrates that reactants and profucts are chemically different?

A. Zn+2HCI-->2HCI+Zn
B. Zn+2HCI-->H2+ZnCI2
C. H2O+C4H10-->H2O+C4H1
D. C4H10+H2O-->C4H10+H2O
Is the answer C?

3 answers

I don't agree with your answer. What is different about the reactants and products in C? I don't see any difference (except for a typo on C4H1 and I'm sure you meant to type in C4H10.)
Yea I did mean to put C4H10 so sorry. Is the answer b?
Yes, the answer is b.