CHY 104 Lecture Notes - Hydrochloric Acid, Silver Nitrate, Sodium Nitrate
Document Summary
There are four laws of chemical combinations these laws explained the general feature of chemical change. These laws are: law of conservation of mass, law of definite proportions, law of multiple proportions, law reciprocal proportions. Antoine lavoiser has rejected the worn out ideas about the changes that take place during a chemical reaction. He made careful quantitative measurements in chemical reactions and established that mass is neither created nor nor destroyed in a chemical change: law of conservation of mass. Mass is neither created nor destroyed during a chemical reaction but it only changes from one form to another form. In a chemical reaction, reactants are converted to products. But the total mass of the reactants and products remains the same. The following experiment easily proves law of conservation of mass. German chemist h. landolt, studied about fifteen different chemical reactions with a great skill, to test the validity of the law of conservation of mass.