Please give me idea why resonance is more reactive. I thought If resonance exists, it delocalizes more, and means less reactive

The two molecules in the pictrue behave very differently in reactions. Though they are both neutral, it is possible to draw resonance structures to illustrate which atoms will have partial charges. In one of the molecules, a carbon of the double bond is partially positive while in the other it is partially negative. 1. Draw one resonance structure for each molecule below with only one positive and one negative charge in the left box. In the box to the right draw out the original structure with its partial charges, which can be determined from the resonance structures.

2. Draw 2 resonance structures for the molecule below including arrows!

Please don't provide handwritten solution ...