Answer:
Copper is element number 29
4th row
11th column
Elements are substances that contain only 1 kind of atom.
Answer:
yes, it is a homogeneous mixture because the different parts cannot be seen.
Explanation:
Physical change , the states are changing from liquid to gas
Geraldo can add a pollutant with slightly basic nature so he will have a solution of neutral pH of 7.
<h3>What is pH?</h3>
The pH of a solution is the negative logarithm to base ten of the hydrogen ions concentration of the solution.
The pH of 6.5 means that the solution is acidic.
By adding a pollutant which is slightly basic in nature, Geraldo will have a solution of neutral pH which is a pH of 7.
Learn more about pH at: brainly.com/question/24595796
