1. Introduction 2. What are ions 3. Materials about us 4. The ions in the car 5. Bibliography 1. Introduction There is usually some electricity contained in the earth’s atmosphere, and therefore, in the air we breathe every day. This electricity is formed by particles called ions, which are positive and negative in varying proportions. ..
* Classification of the chemical elements * For their reactivity * For its usefulness * For its economic impact * For its environmental impact * Toxic chemical waste * Forest land became grassland and city * Bibliography Classification of chemical elements: On the reactivity of its utility, for its economic impact, and environmental impact. Classification ..
* Binary compounds * Ternary Compounds Lavoisier proposed that the name of a compound must describe its composition, and this rule is applied in chemical nomenclature systems. For purposes of the variety name of inorganic chemical compounds, it is necessary grouped into categories of compounds. One classifies them according to the number of elements that ..
Importance and object of study of organic chemistry His initial task was to study the substances were in the living nature. Gradually, however, were taking a greater importance for obtaining artificial substances, many of which are not found in nature. In their own study of natural substances, from grade to grade went from the simple ..
* * Applications of Chemistry in Food Industries * Processes used in the food industry to preserve food PRESENTATION The chemistry is nowadays one of the processes applied in the food industry. Through food she suffer certain changes or modifications to its own preservation improving constituent properties. Currently the population consume various amounts of chemicals ..
* The fundamental forces in nature * Core: What holds it together * Biographies of scientists quoted in this paper. * Glossary * Aristotle believed that all matter in the universe was composed of four basic elements: earth, water, fire and air. These elements suffered the gravity (trend of land and water to sink) and ..
* Theories of acids and bases * Acids Hydroxides or alkali * * Classification of acids and bases * Strength of acids and bases * Nomenclature of acids * Nomenclature of bases * Parameter of acids and bases * Bibliography INTRODUCTION For thousands of years it is known that vinegar, lemon juice and many other ..
Index 1. Introduction 2. Link types 3. Valencia 4. Resonance 5. Conclusions 6. Bibliography 1. Introduction When we milk powder, sugar or when we take tea, milk disappears or sugar Certainly not, one answer these are dissolving in water. But in reality, what happens Why it happens Facts are so common that we forget to ..
* Summary * Introduction * Theoretical Framework * Experimental procedure * Analysis of results * Bibliography Summary For the reaction to occur between dichromate and iron, the iron has to be in oxidation state II, ie must be iron as ferrous chloride, ferric chloride because as occurs because no dichromate is an oxidizing agent and ..
Index 1. General introduction 2. Solubility 3. Physical properties of the solutions 4. Concentration of a solution 5. Conclusion 6. Bibliography 1. General introduction This work is aimed primarily to investigate about the solutions that are an important topic in the field of chemistry, and not only in this matter if this issue affects other ..