Hydrochloric acid and sodium hydroxide are mixed together to form salt and water. During the reaction, the temperature of the solution increases. Which of these best explains why this is considered to be a chemical change?

No energy was destroyed.
Heat was given off.
It involved liquids.
New substances formed.

Question

Hydrochloric acid and sodium hydroxide are mixed together to form salt and water. During the reaction, the temperature of the solution increases. Which of these best explains why this is considered to be a chemical change?
 
  
 No energy was destroyed. 
 Heat was given off. 
 It involved liquids. 
 New substances formed.

abb0t · Answer

Well, you have HCl  + NaOH $\rightarrow$ H_2O + Na + Cl
you have a strong base and a strong acid.

anonymous · Answer

I thought it was D but I guess what your saying means im wrong haha

anonymous · Answer

@BioEpic

bioepic · Answer

New substances formed. 
That is the correct answer.

anonymous · Answer

O wow really thanks :)

bioepic · Answer

No problem! Thanks for the medal!