When the reactant is single compound before the reaction and become more than single compound after reaction is called decomposition reaction
The answer is sodium chloride.
Explanation:
Sodium chloride refers to table salt, and is the most abundant of salts found in seawater.
One mole of methane has a mass of 16 g
PH measures the concentration of hydrogen ions on the log 10 scale. Thus, a pH 5 solution has 2 order of magnitude difference from that of pure water, which has a pH of 7.
Therefore,

. A solution of pH 5 has 100 times more hydrogen ions that that of pure water.