Final answer:
Jacques Cartier was the explorer who kidnapped Chief Donnaconna and other Stadaconans during his second voyage to Canada in the 16th century.
Step-by-step explanation:
The explorer who kidnapped Chief Donnaconna and other Stadaconans was Jacques Cartier. This event occurred during Cartier's second voyage to what is now Canada in the 16th century. By kidnapping Donnaconna, Cartier disrupted the local power dynamics and trade networks, and this action reflected the often-turbulent interactions between European explorers and Indigenous peoples. Cartier's expeditions helped establish a French presence in the region and fostered the interest of local natives in trading with the French, although they also led to conflicts and complex relationships between the two groups.