The abbreviation Al, with one dot on top of the abbreviation, one on the left, one on the right.
I think the correct answer would be because copper has a lower activity than hydrogen and cannot replace the bonds in it. Substances that are not oxidizing do not react with copper since the redox potentials are very low. Hope this answers the question.
3.
protium (A = 1), deuterium (A = 2), and tritium (A = 3).
The the last one, but isn't it c6h12o6?
Answer:
After Eris was discovered, they had to decide whether Eris was a planet or not. If they decided it wasn't a planet, they had to also decide whether Pluto should be counted as a planet since Eris and Pluto were quite similar. They were the same size, and they were both part of the Kuiper Belt.
Explanation:
