4. Isotopes of the same element
<span>Molar mass is the mass of a given substance divided by the amount of that substance, measured in g/mol. So probably A.)</span>
Answer:
The pressure of the gas would decrease
Explanation:
<span>Cu⁺ is the only one of the ions in the list that will show 8 electrons in a d sublevel....its configuration will be Ar| 4s² 3d⁸
hope this helps</span>
Aquifers and rivers and streams and places with water and stuff like that