They are examples of physical<span> contaminants .</span>
Answer:
As you move from left to right, the nucleus gains protons. This increases the positive charge of the nucleus and its attractive force on the electrons. At the same time, electrons are added to the atoms as you move from left to right across a period.
Explanation:
Answer:
5
Explanation:
just subtract 20-25 and 5 is left over which is how much the water when up with the rock.