Question

what type of change occurs when fireworks explode? a physical change b chemical change c change in magnetism d no change occurs

Explanation:

When fireworks explode, new substances are formed (such as gases from the combustion of chemicals in fireworks). A chemical change is characterized by the formation of new substances. A physical change would not form new substances (e.g., melting ice - just a change in state). Change in magnetism is not relevant here as there's no indication of magnetic property alteration. And clearly, a change (explosion) does occur.

Answer:

B. Chemical change