Why wouldn't it make sense to measure the temperature of a thimble full of hot water?

In a popular classroom demonstration, solid sodium is added to liquid water and reacts to produce hydrogen gas and aqueous sodium hydroxide. part a write a balanced chemical equation for this reaction. express your answer as a chemical equation. identify all of the phases in your answer.

Iknow #2 is d. i just need to know why

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