Potassium chloride and water for from the reaction of an acid base therefore kci is a

a) salt
b) element
c) acid
d) base

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The answer to this problem is. 67

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.