Maria and Miquel were enjoying the fireworks when they got into a chemistry argument. Maria insisted that the fireworks were the result of a chemical reaction. Miguel disagreed. What would you tell them to solve this argument.
A) It is a change of state, solid to gas, due to the addition of energy.
B) It was a physical reaction since the fuse was lit and heat was produced.
C) The color changes and the release of energy indicate a chemical reaction.
D) It is an endothermic reaction because energy was added; therefore it is a chemical reaction,

Question

Maria and Miquel were enjoying the fireworks when they got into a chemistry argument. Maria insisted that the fireworks were the result of a chemical reaction. Miguel disagreed. What would you tell them to solve this argument.
A)	It is a change of state, solid to gas, due to the addition of energy.	
B)	It was a physical reaction since the fuse was lit and heat was produced.	
C)	The color changes and the release of energy indicate a chemical reaction.	
D)	It is an endothermic reaction because energy was added; therefore it is a chemical reaction,

osprey · Answer

Guesses below. I'd go for C A could be true but that would be a PHYSICAL THERMODYNAMIC process. B lighting the fuse is COMBUSTION, burning with oxygen and is chemical ... probably exothermic FIRE works can BURN you. The energy of the touch paper is for the IGNITION point. I hope they're still friends. http://perendis.webs.com

osprey · Answer

If they were in the first place, that is ...