Answer:
Calcium
Explanation:
It has 20 electrons to start, loses two to become Ca 2+, and is left with 18 electrons
<h3>
Answer: Choice A) 0-7</h3>
Explanation:
If the pH is between 0 and 7, then we have an acid.
If the pH is between 7 and 14, then we have an alkaline base.
If pH = 7, then it's neutral.
