What is the chemical formula of the following structure?

What is the ph of a solution with a 1.50 × 10−9 m hydroxide ion concentration?

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

Compared with the freezing-point depression of a 0.01 m c6h12o6 solution, the freezing-point depression of a 0.01 m nacl solution is