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Schoolwork of Chemistry

History of medicine

TASK 1

History of medicine
The first been caught knowledge of various diseases written around 400 f.Kr in Greece. Greek culture laid the foundations for a theory of diseases origin and cause. Father of medicine, Hippocrates (460-377 f.Kr) ideas about medical ethics and confidentiality applies today. The first scientific studies and the results came in the 1500's. Vesalius a Belgians (1514-1564) wrote more books of anatomy after having dissected a number of bodies. During the 1600's was the practice of medicine under the influence of religion, astrology and witchcraft. Until the late 1800s was used drugs came from nature after it was produced new drugs by chemists and biologists. In my opinion, religion has had a major impact on the practice of medicine and still has great influence in certain religion than today. The research has developed many medicines that help against various diseases and human / animal in pain. Drugs have helped many people on the whole but at the same time as the drug also made ​​many people addicted to drugs. View schoolwork »

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Lethal erectile dysfunction online

Topic: Biology , Health , Chemistry , Human

Marianne Hedenbro
Published: January 9, 2009 23:30 Sydsvenskan Updated: January 9, 2009 23: 57Minst ten male enhancement sold on the Internet has been fortified with the same substances found in prescription medications. MPA who has examined the market warn that the products can be deadly. View schoolwork »

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Aluminum

Subject: Chemistry

Name: Aluminum
Chemical name: Al
Atomic number: 13
Appearance: Silver View schoolwork »

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Acids

Subject: Chemistry

Hydrochloric acid HCl

Features: is as concentrated a lot starktfrätande and an odorless gas. Open a bottle of hydrochloric acid, hydrogen chloride gas leaves that attract moisture in the air and forms a white smoke. See schoolwork »

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Lab Report ester

Subject: Chemistry

Material 2 test tubes, test tube rack, beaker (400 ml) and glass rod.
Chemicals: Formic acid, ethanol and concentrated sulfuric acid. View schoolwork »

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Water

Subject: Chemistry

DETERMINATION OF WATER SPECIFIC HEAT CAPACITY

The heat capacity can be determined for an arbitrary composite system. In this lab we will investigate the thermal properties of water. View schoolwork »

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Laboratory experiment Flashpoint

Subject: Chemistry

Methodology: We used a burner, two beakers, measuring a thermometer, a 100ml beaker, red ethanol and water. We began by measuring the 50% water and 50% ethanol as we poured into a crucible then we tried to light it with the help of just a match to see if the flash point was lower or the same degree as the liquid was then. View schoolwork »

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Neutralization

Subject: Chemistry

Top

In this lab, we tested pouring BTB in an acid and a base. We also made ​​a neutralization by mixing a base with an acid. View schoolwork »

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Organic Chemistry, bass facts

Subject: Chemistry

Organic chemistry: If chemical compounds that contain carbon atoms.
Inorganic chemistry: Other chemistry, this also includes coal and simple carbon compounds such as carbon dioxide.
The molecular form: Which atoms contained in the molecule. For example, CH4
Structure Shape: How atoms are ordande. View schoolwork »

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Determination of the reaction formula by heating the sodium bicarbonate

Subject: Chemistry

Objective: Learn to count with moles in chemical equations and by dettas able to determine the mass of the reactants. View schoolwork »

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