By there pH . a pH below 7 is acidic . Above 7 is basic. If it’s right at 7 it’s neutral.
chlorine's atomic number and mass :
35,453 u
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Answer:
chemical change
Explanation:
because physical is like if something is happening inside your body
BTW
I hope this helps
Answer:
A. the atomic number
Explanation:
It is a member of the alkaline earth family of metals with the atomic symbol Ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth.
