Enthalpy

Amounts of reactants influences the change in temperature and the heat exchanged during an acid-base neutralization reaction, HCl(aq) + NaOH(aq), but the value for the change in enthalpy is constant.

A short computer animation illustration how positive and negative ions in a solid ionic compound dissolve in water might be used to accompany the dissolving salts in water demonstration.

Several ionic salts (calcium chloride, ammonium nitrate, potassium chloride, magnesiium sulfate, lithium chloride, anhydrous sodium acetae, anhydrous sodium carbonate) are dissolved in water in a calorimeter. A thermomters measures the intitial temperature of the water and the final temperature of the resultant solution. Dissolving ionic salts in water can be used to illustrate formation of Solutions, Enthalpy, Lattice Energy, etc.

Calorimetry Computer Simulation is used to determine the heat exchanged in a variety of physical and chemical processes. NEW html5 version

Potassium hydrogen tartrate is oxidized to produce carbon dioxide in an exothermic reaction.

Magnesium burns brightly in air.

The spontaneous dehydration of sugar grows gray-black.

When calcium chloride dissoves in water the resultant solution becomes hot. When ammonium chloride disssolves in water the resultant solution becomes cold.

Bromine and aluminum react to produce yellow light and orange vapor.

Aluminum and iron (III) oxide react to produce molten iron, aluminum oxide, and a tremendous amount of heat.