I think the answer is hydrosphere
CaO ( calcium oxide) is a basic oxide.
The answer is would be B! :)
That would be a description of a solid if that’s what your looking for. If not ask me in the comments:)
Answer:
D
Explanation:
solution made by mixing 100 mL of 0.100 M HClO and 50 mL of 0.100 M NaOH Can resist pH change when there is little addition of either acid or base, hence it is a buffer solution