Sulphates are ionic compounds that contain the anion SO42-, which is called the sulfate anion.Sul...

Kps is the acronym used to represent the solubility product constant, which refers to the product...

Consider an arc of the trigonometric circumference that measures 45°, its double arc is a 90° arc...

Acid rain is produced by oxides: Sulfur dioxide (SO2) and nitrogen (NO2), both derived from burni...

THE aristocracy is an old form of power where the policy is led by a select group of privilege ho...

THE division is one of the four basic operations of the math and it's inverse to multiplication. ...

THE Easter it is a celebration of the Christian religious calendar in memory of the crucifixion a...

On September 1, 1985, after a long search, the wreckage of one of the most famous shipwrecks in h...

O melanoma is a type of cancer that arises from melanocytes, cells responsible for the manufactu...

Fractional algebraic expressions are those in which the denominator has letters, that is, variabl...

The National Institute of Educational Studies and Research Anísio Teixeira (Inep) released this T...

The United Nations (UN), to analyze the level of social development of a country, uses the Human ...