4observations that suggest a chemical change is occurring

This graph gives information on changes in sea ice extent in the arctic ocean over a 30-year span. the overall trend shows in the ice extent. to address the trend, scientists need to ask themselves, one direct consequence of the trend is that

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

What is the lowest number energy level where a d sublevel is found