chemical reactions

science

5 flashcards · Other · by Nawal Al Soussi

1. what is a chemical change?

   is the change in the physical properties or state of an object in which it can not be returned back.

2. what is the PH of acids ?

   the PH of acids is below 7

3. what is the PH of the bases ?

   the PH of bases is above 7

4. At ph=7 what is the kind of the solution we have ?

   neutral solution

5. a word equation made up of what ?

   it is made up of reactants and products