If you're looking for "what rocks are formed by changes..." it's Igneous Rocks.
The columns of the periodic table, also referred to as "groups" contain elements with similar reactive properties, due to these elements having a similar configuration of electrons in their outer shell.
Answer:
volcanos is the correct answer
Answer:
It is A).
Explanation:
Silver (Ag) goes from the pure metal to Ag+ losing 1 electron so it is oxidised.
The hydrogen ion gains electrons and is reduced.
It's a mixture of H2O + a soluble substance like, salt.