Identify this reaction
In pic

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?