1 Each square on the map is 2 cm by 2 cm (4 cm 2) and represents 1 km 2 on the surface of the earth. 2  For 1:25,000 maps, the grid lines are 4 cm apart. 3  Each square on the map is 4 cm by 4 cm (16 cm 2) and represents 1 km 2 on the surface of the earth.
+ 2 e â + 2 H + â. In the last example, H + ions (hydrogen ions) also take part in the reaction, and are provided by an acid in the solution, or by the solvent itself (water, methanol etc.). Electrolysis reactions involving H + ions are fairly common in acidic solutions.
Best Answer: Hydrolysis is a chemical reaction or process in which a chemical compound reacts with water.This is the type of reaction that is used to break down polymers. Water is added in this reaction.eport Abuse. Hydrolysis is a chemical reaction or process in which a chemical compound reacts with water.This is the type of reaction that is used to break down polymers.