Given is a list of chemical reactions. Burning octane fuel Forming rust in an iron pipe Baking a cake Cement hardening Which sequence ranks the chemical reactions in order from fastest to slowest?

Burning octane is the fastest reaction because combustion happens very quickly. Baking a cake takes longer, while cement hardening generally takes hours or days. Rust forming in an iron pipe is usually the slowest, often taking much longer. So the order from fastest to slowest is 1, 3, 4, 2: burning octane, baking a cake, cement hardening, then rust formation.

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