What is chemistry?
Chemistry for Cambridge International AS & A Level (Cambridge University Press) These new editions meet the real teaching needs of the science classroom. With specialist features, your learners will benefit from language support and skills development, as well as comprehensive guidance for practical work. Read more on the Cambridge University Press website. Important …
What is the science of chemical composition called?
chemistry: [noun] a science that deals with the composition, structure, and properties of substances and with the transformations that they undergo.
What is the difference between chemistry and chemical science?
Chemistry, the science of the properties, composition, and structure of substances (defined as elements and compounds), the transformations they undergo, and the energy that is released or absorbed during these processes. Chemistry is concerned with the properties of atoms and the laws governing their combinations.
What is about chemistry—an Asian Journal?
01/03/2022 · Chemistry—An Asian Journal publishes articles and reviews on all aspects of chemistry, including organic and inorganic chemistry, biochemistry, physical and analytical chemistry, as well as interdisciplinary topics such as energy storage and conversion and materials science.Chemistry—An Asian Journal is published on behalf of the Asian Chemical …
What is chemistry used for?
Chemistry is a fundamental and enabling science that investigates molecules—the building blocks of all matter—and how they interact to affect the composition, structure and properties of substances.03-Aug-2016
What is chemistry as a career?
in chemistry can lead to careers in academics, private industry, and government research laboratories. The nation's concern about energy, the environment, and the detection of hazardous substances has added to the government's need for informed technical opinions on these subjects.
Why is chemistry called the science of life?
Answer:chmistry is calledthe science of life this is because in everyday's life we perform millions of chemical reactions into our body such as digestion, etc.26-Mar-2020
What is chemistry and examples?
4. The definition of chemistry is a branch of science that deals with the form and properties of matter and substances or the interaction between individuals. An example of chemistry is the study of protons and neutrons. An example of chemistry is the feeling of affection and attraction between a couple.
What is the highest paying job in chemistry?
Highest Paying Chemistry Jobs#1. Nanotechnologist.#2. Chemical Engineering.#3. Water Chemist.#4. Toxicology.#5. Hazardous Material Management Chemist.#6. Geochemist.#7. Analytical Chemist.#8. Academic Research chemists.More items...•28-Oct-2021
Which field is best in chemistry?
Top 10 Chemistry JobsChemistry Teacher.Forensic Scientist.Geochemist.Hazardous Waste Chemist.Materials Scientist.Pharmacologist.Toxicologist.Water Chemist.More items...•11-Nov-2021
What is the love chemistry?
High levels of dopamine and a related hormone, norepinephrine, are released during attraction. These chemicals make us giddy, energetic, and euphoric, even leading to decreased appetite and insomnia – which means you actually can be so “in love” that you can't eat and can't sleep.14-Feb-2017
What is the basic of chemistry?
Chemistry is the study of the composition, structure, properties and change of matter [matter is defined as anything that has rest mass and volume (it takes up space) and is made up of particles]. Chemistry is chiefly concerned with atoms (a basic unit in chemistry) and their interactions with other atoms.
What is chemistry in a relationship?
Chemistry in a relationship can also be described as a chemical connection between two people. When there is chemistry in a relationship, two people want to spend as much time together as possible, and they enjoy doing simple things together, even household chores.05-Oct-2021
What is chemistry for kids?
Chemistry is the branch of science that studies the properties of matter and how matter interacts with energy. Chemistry is considered a physical science and is closely related to physics.
What is chemistry in everyday life?
Chemistry is a big part of your everyday life. You find chemistry in foods, the air, cleaning chemicals, your emotions, and literally every object you can see or touch.15-Oct-2019
Why do you like chemistry?
Overcoming problems and having to create new ways to achieve this also builds your resilience and patience. It makes you develop your critical thinking skills and improves how you act in certain situations. I believe that the study of Chemistry betters you as a person, and helps you become who you want to be.23-Jan-2020
Overview
Chemistry is the scientific study of the properties and behavior of matter. It is a natural science that covers the elements that make up matter to the compounds composed of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a reaction with other substances.
In the scope of its subject, chemistry occupies an intermediate position between
Etymology
The word chemistry comes from a modification of the word alchemy, which referred to an earlier set of practices that encompassed elements of chemistry, metallurgy, philosophy, astrology, astronomy, mysticism and medicine. Alchemy is often seen as linked to the quest to turn lead or other base metals into gold, though alchemists were also interested in many of the questions of modern chemistry.
Modern principles
The current model of atomic structure is the quantum mechanical model. Traditional chemistry starts with the study of elementary particles, atoms, molecules, substances, metals, crystals and other aggregates of matter. Matter can be studied in solid, liquid, gas and plasma states, in isolation or in combination. The interactions, reactionsand transformations that are studied i…
History
The history of chemistry spans a period from very old times to the present. Since several millennia BC, civilizations were using technologies that would eventually form the basis of the various branches of chemistry. Examples include extracting metals from ores, making pottery and glazes, fermenting beer and wine, extracting chemicals from plants for medicine and perfume, rendering fa…
Practice
Chemistry is typically divided into several major sub-disciplines. There are also several main cross-disciplinary and more specialized fields of chemistry.
• Analytical chemistry is the analysis of material samples to gain an understanding of their chemical composition and structure. Analytical chemistry incorporates standardized experimental methods in chemistry. These methods may be used in all subdisciplines of chemistry, excluding …
See also
• Comparison of software for molecular mechanics modeling
• Glossary of chemistry terms
• International Year of Chemistry
• List of chemists
Bibliography
• Atkins, Peter; de Paula, Julio (2009) [1992]. Elements of Physical Chemistry (5th ed.). New York: Oxford University Press. ISBN 978-0-19-922672-6.
• Burrows, Andrew; Holman, John; Parsons, Andrew; Pilling, Gwen; Price, Gareth (2009). Chemistry . Italy: Oxford University Press. ISBN 978-0-19-927789-6.
Further reading
Popular reading
• Atkins, P.W. Galileo's Finger (Oxford University Press) ISBN 0-19-860941-8
• Atkins, P.W. Atkins' Molecules (Cambridge University Press) ISBN 0-521-82397-8
• Kean, Sam. The Disappearing Spoon – and Other True Tales from the Periodic Table (Black Swan) London, 2010 ISBN 978-0-552-77750-6
Quotes
- Chemistry is the study of matter, its properties, how and why substances combine or separate to form other substances, and how substances interact with energy. Many people think of chemists as being white-coated scientists mixing strange liquids in a laboratory, but the truth is we are all chemists. Understanding basic chemistry concepts is important for almost every profession. Ch…
Introduction
- Analytical chemistry uses qualitative and quantitative observation to identify and measure the physical and chemical properties of substances. In a sense, all chemistry is analytical.
Chemistry
- Physical chemistry combines chemistry with physics. Physical chemists study how matter and energy interact. Thermodynamics and quantum mechanics are two of the important branches of physical chemistry. Organic chemistry specifically studies compounds that contain the element carbon. Carbon has many unique properties that allow it to form complex chemical bonds and v…
Components
- Food science deals with the three biological components of food carbohydrates, lipids and proteins. Carbohydrates are sugars and starches, the chemical fuels needed for our cells to function. Lipids are fats and oils and are essential parts of cell membranes and to lubricate and cushion organs within the body. Because fats have 2.25 times the energy per gram than either c…
Scope
- Agricultural chemistry is concerned with the substances and chemical reactions that are involved with the production, protection and use of crops and livestock. It is a highly interdisciplinary field that relies on ties to many other sciences. Agricultural chemists may work with the Department of Agriculture, the Environmental Protection Agency, the Food and Drug Administration or for privat…
Roles
- Geochemists combine chemistry and geology to study the makeup and interaction between substances found in the Earth. Geochemists may spend more time in field studies than other types of chemists. Many work for the U.S. Geological Survey or the Environmental Protection Agency in determining how mining operations and waste can affect water quality and the enviro…
Analysis
- Forensic chemists capture and analyze the physical evidence left behind at a crime scene to help determine the identities of the people involved as well as to answer other vital questions regarding how and why the crime was carried out. Forensic chemists use a wide variety of analyzation methods, such as chromatography, spectrometry and spectroscopy.
Research
- In new research appearing in the Journal of the American Society of Mass Spectrometry, scientists from the department of chemistry at Louisiana State University (LSU) set out to apply laser technology to the field of forensic science.
Operation
- The tool focuses a laser using mirrors and optical fibers onto a surface containing a fingermark. The laser then heats up any water or moisture on the surface, triggering chemical bonds in the water to stretch and vibrate, according to the LSU College of Science Blog. All of this focused energy causes the water to explode, turning it into a gas and separating biomolecules such as D…
Example
- Next a small vacuum pump system pulls the water and molecules into a tiny filter that captures everything left behind by a persons finger. Forensic scientists can then put the contents into an analysis device such as a mass spectrometer or a gas chromatography-mass spectrometer.
Advantages
- Importantly, this laser ablation technique can easily capture fingermarks on porous surfaces, such as cardboard (on which traditional forensic methods have not been very successful).
Discovery
- To test their new technique, the researchers placed fingermarks on many different surface types, including glass, plastic, aluminum and cardboard. These fingermarks were laced with substances as diverse as caffeine, antiseptic cream, condom lubricants and TNT, according to the LSU College of Science Blog. After each fingermark capture, the chemists were able to identify these …