Answer:
Well i know that a chemical change is somthing that can not be undone.
This however is a physical change let me explain.
Even though you mixed two chemicals together to create a new substance does NOT mean it is a chemical change. This however is kinda like a water. You can turn water into a ice cube that does not mean it changed what the water is made out of it just changed the form of the water. Kinda like this. A chemical change would be an example of buring a log once that log has turned into ashs it will never be the log it was before.
Step-by-step explanation: