A common cause of thermal pollution is the use of water as a coolant by power plants and industrial manufacturers
Answer:
Group 13
Explanation:
We have been given some properties of the elements we desire to identify.
The most important and by far unique is the oxidation state of the ions given. This reflects the amount of electrons an atom has lost or gained.
Group 1 and 2 elements have oxidation states of +1 and +2 respectively. This is a very perculiar property of these metals. When group 1 elements lose an electron, nobility is achieved and this goes for group 2 elements too.
Group 12 consists of transition elements. Most transition elements are known to have variable oxidation states. In this group, the common oxidation state is +2.
Group 13 elements have two dominant oxidation numbers which are +1 and +3. Particularly, Aluminum has +2 oxidation state too.
The properties fits in well for aluminum which is a group 13 element.
After 4-6 months but i'm happy for you
Chromatography separates things according to their weight.
I think the answer is reversible. Reversible reaction is a kind of reaction which can react in both direction at the same time. And when the both side reactions get the same speed, the reaction is at a equilibrium state.
