BIO 360 Lecture Notes - Lecture 7: Ammonium Nitrate, Sodium Acetate, Activated Carbon
Document Summary
The following reactions are single use products once the reaction is initiated by combining the contents. Reaction chemistry : ammonium nitrate stored in a sealed plastic bag that is surrounded by water . When the bag pops , the ammonium nitrate comes into contact with water and dissolves . It cannot be repeated, using the same pack. Thermochemistry : endothermic absorb heat energy from their surroundings ; reactions are colder. Alternative chemical reactions : dissolving table salt may give off heat energy system where the reaction takes place surroundings area around the system. Determining the type of reaction : measure the temperature change of the system or its surroundings, calculate the energy of the system. Materials : iron powder, salt , water , an absorbent material , and activated carbon. Reaction chemistry : when outer pouch is removed from its packaging oxygen drifts across the pouches permeable covering. Thermochemistry : exothermic releases energy in the form of heat .
