I was hoping that some choices would be given to choose from. As there are no choices given, so i am answering the question based on my knowledge and hope that it comes to your help. Calcium hydroxide is a good example of Arrhenius base. An Arrhenius base is actually a substance that releases a hydroxyl ion in water.
Answer:
look at the photo........................
Tarnish is Ag2S-silver sulfide and the oxidation state of silver is +1
Answer:
Add G and H to determine the atomic mass for helium
Explanation:
Helium would be the least I think