### Divisibility theory

Divisibility Divisibility is the property of an integer number to be divided by another, resulting an integer number. Where a and b, two integers numbers, we will say that “a” is a multiple of […]

### The IUPAC is naming four new chemical elements

After the recent discover by russian, japanese and northamerican scientifics of four new chemical elements, the IUPAC (International Union of Pure and Applied Chemistry), http://iupac.org has shown the names with which they will be added to the […]

### Combined Operations theory

Combined Operations We call Combined Operations to those in which several arithmetic operations appear to be solved. To get the right result you need to follow some rules and take into account the priority […]

### Capacitance theory

Capacitance Capacitance is the ability of a body to store charge in an electric field. Capacitance is also a measure of the amount of electric potential energy stored (or separated) for a given electric […]

### Direct-Current theory

Direct-Current When it is connected a continuous conductive path, like a wire with a battery terminal, we obtain an electric circuit. The device which receives charging from a battery is not always a wire, […]

### Radicals theory

Radicals Radicals are expressions with the form: Where n Є N and a Є R; provided that when a is negative, n must be odd. n=index; a=radicand; m=exponent. A radical can be expressed […]

### BIOPROFE RELEASES NEW WEBSITE

June of 2016 is going to be very important to BioProfe. Throughout this month our new website http://www.bioprofe.com will begin to work. Our web portal is completly renewed to offer to our users a more […]

### Chemical Kinetics theory

Chemical Kinetics Chemical Kinetics studies the speed of chemical processes and determines the factors which influence on it. It aims is to find mathematical expression that relates the speed of a chemical reaction with […]

### Van der Waals Forces

Van der Waals Forces theory Van der Waals forces, although they don’t form a chemical bond theirselves, they are responsible for the attraction between neutral and saturated molecules, which result in the condensed states […]