Chemistry

Minerals are naturally occurring inorganic substance with definite and predictable chemical composition and physical progenies.

The amount of heat produced by complete burning of 1 mole of substance in oxygen is called heat of combustion of that substance.  Fire is a chemical reaction in which energy in the form of heat is produced. When forest fuels burn, there is a chemical combination of the oxygen in the air with woody … Read more

The cations and anions formed by electron gaining-losing are attached to the compound molecule with a static electric attraction force which is called ionic bond.

The acids which are partially ionized in aqueous solution are called weak acids.

The chemical substances which when used in limited amounts can be preserved for a long time through the processing of food substances are called food preservatives.

Coating of Zn on other metals is called galvanizing, coating with tin is called tin plating & coating with other metals by electrolysis is called electroplating.

Electrode is a metallic and nonmetallic electric conductor. These are called electronic conductors. Electrode connects the electronic conductor and solution (which convey ions) of electrochemical cell.

Nonmetal oxides get dissolved in water vapor and produce some acids which come down to earth with rainwater, this is called acid rain.