It measures the acidity/basic level, that rules A out
hope this helped a little
Answer:
NO OF NEUTRON =MASS NO -ATOMIC NO
=39-19
=20
bcz atomic no is equal to no of electrons
mark as brainliest
Answer:
Explanation:
The salts in drinks help replenish the body's electrolytes lost in sweat. ... The salts in sports drinks help replenish the body's electrolytes lost in sweat. Sodium helps regulate the body's fluid balance and plays a role in muscle contraction, and potassium is also involved in muscle contraction
Answer:
8
Explanation:
the number before the abbrviation for calcium (Ca) shows how many calcium there is.