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Synthesis of a copper glycinate (II) Complex monohydrate

The coordinating compounds are basically characterized by an ion of a block d metal, called Lewis acid surrounded

Using waste as a tool for environmental education and chemistry teaching

The main objective of this work is to produce gypsum and ecological paint with residues of eggshells. Furthermore, we know that reuse

An efficient method to recycle and recover silver nitrate for genetic analyses

Silver nitrate (AgNO3) is a routine reagent in Laboratories of Molecular Genetics and Cytogenetics, thereby resulting in large amounts of residues.

Brazilian tungsten panorama (w) between 2008 and 2014

Minerals are natural chemicals, which have an orderly internal structure, and certain constant characteristics that allow

National panorama of niobium between 2010 and 2014

Mining is the extraction activity of a mineral good from the earth's crust. Niobium (Nb) is element no. 41 in the periodic...

National silver panorama between 2010 and 2014

Having the name derived from the Latin word Argentun, silver (Ag) is a transition metal that has high electrical conduction and corrosion resistance

National iron panorama between 2010 and 2014

Mining is the activity carried out that aims to remove a mineral good from the earth's crust, representing about 5% of Brazil's GDP in 2014

Brazilian manganese reserve, production, market and consumption between 2010 and 2013

Usually found in a solid state, manganese (Mn) is a metallic substance, it is one of the most abundant elements of the earth's crust
Figura 1: Representação gráfica da distribuição do número de carbono e dos anéis (Z) da amostra de ácidos naftênicos de areias petrolíferas. Fonte: Rogers et al (2003)

Naphthenic acids: detection and identification in petroleum

In recent years much of the oil reserves discovered in Brazil, this is heavy oil of low level API (< 20th)
Figura 2: Utilização de computadores por estudantes que não possuem essa tecnologia em seus domicílios.

The computer as a tool in the teaching and learning of biology and Chemistry:...

The 21st century, the era of globalization, where the information is obtained through a few mouse clicks exploring the universe called internet

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