18 Results for chemistry

The Importance of Chemistry We are surrounded everyday by Chemistry. Chemistry was responsible for you car to get you to work, your furnace to heat your home, and your body to turn your breakfast into energy. The coke you drank with your lunch was flavoured by chemistry. Chemistry is ...
Alchemy There are many ways to examine the subject of alchemy, including alchemy as a source of symbolism, psychology, and mysticism. It has also been an influence on the world view of various writers, artist, and musicians. The focus of this report is alchemy as a pre-chemistry, which gave a ...
Antoine Lavoisier (1743-1794)Antoine-Laurent Lavoisier (lah vwah ZYAY) was one of the best-known French scientists and was an important government official. His theories of combustion, his development of a way to classify the elements and the first modern textbook of chemistry led to his being known...
Time as a Determinate of Final Product in a Dehydration ReactionRobert Simack, Department of Chemistry and Biochemistry, University of Alaska Fairbanks, Fairbanks, Alaska.Abstract: This study involved acid dehydration of 2-methylcyclohexanol. The results varied depending on the time elapsed after ...
Chemical reactions are the heart of chemistry. People havealways known that they exist. The Ancient Greeks were the firststo speculate on the composition of matter. They thought that itwas possible that individual particles made up matter. Later, in the Seventeenth Century, a German chemist ...
Chemical ReactionsChemical reactions are the heart of chemistry. People have always known that they exist. The Ancient Greeks were the firsts to speculate on the composition of matter. They thought that it was possible that individual particles made up matter. Later, in the Seventeenth Cent...
There are many ways to examine the subject of alchemy, including alchemy as a source of symbolism, psychology, and mysticism. It has also been an influence on the world view of various writers, artist, and musicians. The focus of this report is alchemy as a pre-chemistry, which gave a new impulse to...
Year 11 Chemistry Unit 1 POLYETHENE-ain't it choice! word count : 1131 Polyethene also known as polyethylene or polythene, was the first of the polymers to be discovered. Polyethene is a polymer produced by reacting oxygen and ethene, in this reaction the small ethene molecules attach t...
Chemical reactions are the heart of chemistry. People have always known that they exist. The Ancient Greeks were the first to speculate on the composition of matter. They thought that it was possible that individual particles made up matter. Later, in the Seventeenth Century, a German chemist na...
In the unorderly world of today's society, we find little time to look deeper at the framework that holds together the human race. We tend to leave the exploration of the human body up to the allied health professionals. Nurses among others, are dedicated to understanding and studying the biologic...
Chapter 15 Vocab Boiling temperature elevation- property of solutions that describes temperature difference between boiling point of a pure solvent and temperature at which solution begins to boil. Colligative property- characteristic of a solution that does not depend on size or type of particl...
BACKGROUND INFORMATION What affects the rate of reaction? 1) The surface area of the magnesium. 2) The temperature of the reaction. 3) Concentration of the hydrochloric acid. 4) Presence of a catalyst. In the experiment we use hydrochloric acid which reacts with the magnesium to form magnesium chlor...
Is Love a Mechanism of Evolution? Upon reading the articles and summary's of Helen Fisher and Jeffery Reber I have concluded that Love can be explained as in a collection of Emotions, release of certain chemicals, but mainly something that has to happen over time. A relationship has to deve...
Title: determination of the rate equationTask: Plan design and conduct an experiment to determine the rate equation for the reaction between Sodium Thiosulphate Na2S2O3 and Hydrochloric Acid HCl2HCl(aq) + Na2S2O3(aq)2NaCl (aq) + SO2(g) + S(s) + H2O(l)Equipment, apparatus and chemicals0.4 m...
Chemistry Coursework Rate of reaction Aim: Plan an investigation into the rate of reaction between Sodium thiosulphate and hydrochloric acid. Background information: • The equation for the rate of reaction is 1/time. • The rate of reaction measures the speed of reaction. It is ...
A physical change occurs when an object goes through a change that doesn't alter its chemical nature. A physical change involves a change in physical properties. Physical properties can be observed or measured with out changing the type of matter. A physical property doesn't describe a change; it t...
Addition PolymerisationThe joining of two or more simple molecules or monomers, to form a new compound, a polymer which has the same empirical formula.Mechanism of the Polymerisation of Ethene Thousands of ethene molecules join up to form a type of poly(ethene) known as low density polythene. [CH2=...
Re: DETAILED METHODS for NON-CHEMISTS METHamphetamine PRECURSS CLEANING/wkUP Extractomania........by Ozbee friends..........edited by Placebo INDEX: 1: Equipment 2: Ingredients 3: Method step 1: step 2: step 3: step 4: step 5: step 6: 4: Acid/Base 5: HCl-Gassing 6: Notes ...