Connie was making sodium chloride by adding an acid to an alkali. She followed the progress of the reaction with a pH sensor. What else could she have used to detect when the reaction was complete?

Common table salt is sodium chloride, but it is just one example of many compounds called salts. The name of a salt has two parts:

the first part comes from the metal in the base used

the second part comes from the acid that was used

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.