Which images show chemical reaction, melting ice, mixure of nuts bolts and washers, rusted nails, or pastries?

rusted nails and pastries

Explanation:

rusted nails because when nails rust the iron reacts with oxygen and moisture to create rust

pastries because there is a chemical reaction to help the pastries puff and rise

a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be?

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are there options? cause you ain’t. real specific