The melting point (m.p)℃ of a compound is the temperature at which it changes from a solid to a liquid. Since this requires that the intermolecular forces that hold the solid together have to be overcome . The melting point is a physical property (melting point, boiling point, density, solubility ,etc.) often used to identify compounds . Usually, chemists can only obtain a melting range of a 2 - 3℃ accuracy. A pure, non-ionic, crystalline organic compound usually has a sharp and characteristic melting point (usually 0.5-1.0 ℃ range).

This objective is achieved by a careful evaluation of a patient’s study casts. The instrument used to aid the examination of the study casts is called a dental surveyor and the procedure is known as surveying.

Chemistry is a whole branch of science about matter, which is anything that has mass and occupies space. Chemistry is the study of the composition and properties of matter and the changes it undergoes.

Nonpathogenic Intestinal Ameba

Anatomical landmarks of the mandibular arch 

Second Stage 

3. lecture 

The titration of potassium permanganate (KMnO4) against oxalic acid (C2H2O4) is an example of redox titration. In close proximity to the endpoint, the action of the indicator is analogous to the other types of visual colour titrations in oxidation-reduction (redox) titrations.

Methods Used to Grow Bacteria on Solid Media 

In its simplest form, a lever is a rigid bar supported somewhere along its length. It may rest on the support or may be supported from above. The support point of the lever is called the fulcrum, and the lever can move around the fulcrum.