learning how to do a chemical reations

This term I have been learning about chemical reations in the kitchen.
I really liked learning about a chemical reations and solids.
A chemical reation is when you put at two or more things and mix and you cant turn it back to what it was like if you put salt and water together the salt will dissolve and you cant get it back
I found it kinda challenging because it is kinda hart to kinda under stand at first but then you start to get it.