the timeline between cheese world and strawberry world is insane, I STILL CAN'T PROCESS IT
dont process it. just enjoy it. so in the future if u want to rewatch, you still can enjoy it because you don't remember anything in the first place wkwkwkwkwkwkwk
Fe₂O₃ + 3CO → 2Fe + 3CO₂
but for Mg + ZnSO₄ → MgSO₄ + Zn, it's a chinese joke : "nǐ de měi tōu zǒu le wǒ de xīn".
the meaning is : Your beauty stole my heart
Mg + ZnSO₄ → MgSO₄ + Zn
= Mg stole Zn
Mg = Magnesium = 镁 (měi)
Zn = Zinc = 锌 (xīn)
Mg + ZnSO₄ → MgSO₄ + Zn
wkwkwk the creator is creative
and
Mg + ZnSO₄ → MgSO₄ + Zn
wkwkwkwk
but if you need me to answer seriously, it's more like an open ending.
still too many possibilities