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Chemistry is the study of matter and the interactions between different types of matter. It has four major areas: organic chemistry, inorganic chemistry, analytical chemistry, and physical chemistry. Organic chemistry studies carbon and living matter. Inorganic chemistry studies non-living matter. Analytical chemistry determines what a substance is and how much is present. Physical chemistry examines the physical properties of substances and their structure. There are also many sub-specialties within chemistry like biochemistry, polymer chemistry, and solid state chemistry. The fundamental starting point in chemistry is understanding atoms - their behavior, composition, and different types as shown on the periodic table of elements.
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What is matter
Matter is anything that has mass and occupies space. It is composed of small particles and can be classified as either pure substances or mixtures. Elements are the simplest pure substances, composed of only one type of atom. When two or more elements are chemically combined, they form a compound, which has different properties than the individual elements. Common compounds include water, salt, and sugar which are essential to everyday life.
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Matter is anything that has mass and occupies space. It can be either a pure substance, containing only one type of particle, or an impure substance/mixture, containing multiple substances combined together. Pure substances can be either elements or compounds. Elements cannot be broken down further through chemical reactions, while compounds are formed by two or more elements chemically bonded together in fixed proportions. Metals have properties of being lustrous, conducting heat and electricity, malleable, and sonorous, while non-metals lack these properties and are not good conductors. Metalloids display some properties of metals and some of non-metals.
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1) The document discusses the scientific method and how it is used to classify and understand matter through careful observation, hypothesis testing, and developing general theories.
2) Matter can be classified based on its physical state as solid, liquid, or gas, which is determined by the structure and motion of atoms and molecules. It can also be classified based on its composition as pure substances like elements and compounds, or mixtures.
3) Changes in matter can be physical changes that alter state but not composition, or chemical changes that alter composition through rearrangement of atoms. Both types of changes are associated with gains or losses of energy.
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- Early chemists like Döbereiner and Mendeleev organized the chemical elements and noticed periodic trends in their properties.
- The modern periodic table arranges elements in columns and rows based on atomic structure and properties, with metals on the left, nonmetals on the right, and metalloids in between.
- Elements in the same group have similar chemical properties because they have the same number of electrons in their outer shell.
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Chemistry
Chemistry is the branch of science that deals with the composition, structure and properties of matter.
Chemistry is also called the science of atoms and molecules.
Chemistry is the study of matter and the changes it undergoes.
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Nursing is a profession within the healthcare sector focused on the care of individuals, families and communities so they may attain, maintain or recover optimal health and quality of life.
Nurses may be differentiated from the other healthcare providers by their approach to patient care, training and scope of practice.
Chemistry in nursing is very important, as it sets the basis for understanding the medications that are being administered to certain patients
Nurses must understand how particular medicines will react in different patients. This helps to avoid wrong combinations of drugs that can lead to adverse effects.
Nursing programs feature different chemistry courses, including biochemistry, pharmacology, general level chemistry and organic chemistry. All of these courses play an important role in helping nurses understand different organic compounds, chemical equations, chemical reactions and chemical processes.
Therefore, chemistry knowledge allows nurses to understand the effects of different medicines when used alone or in combination with others.
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The term matter refers to anything that occupies space and has mass. All matter is made up of substances called elements, which have specific chemical and physical properties and cannot be broken down into other substances through ordinary chemical reactions.
There are two ways of classifying the matter:
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Matter can exist in three physical states:
Solids
Liquids
Gases.
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Based upon the composition, matter can be divided into two main types:
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Solids differ from liquids and gases by the characteristic of rigidity.
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Whereas, liquids and gases possess the property of fluidity and can easily flow.
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There are several main branches of chemistry including analytical chemistry, organic chemistry, inorganic chemistry, physical chemistry, biochemistry, nuclear chemistry, and materials chemistry. Analytical chemistry involves the separation, identification, and quantification of chemical components. Organic chemistry is the study of carbon-containing compounds. Inorganic chemistry covers non-organic compounds including minerals, salts, and water. Physical chemistry examines the physical and theoretical properties of chemical systems. Biochemistry studies chemistry in living organisms. Nuclear chemistry deals with radioactive elements and processes. Materials chemistry prepares and analyzes functional substances.
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The document discusses the key concepts of elements, compounds, atoms, molecules, and ions. It defines elements as basic forms of matter that cannot be broken down further, while compounds are formed by chemical bonds between different elements. Atoms are the basic building blocks that make up elements and can combine to form molecules or ions. Molecules may contain atoms of the same or different elements, while ions are charged particles that form when atoms gain or lose electrons.
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What is chemistry notes
- 1. 1. INTRODUCTION - What is chemistry? hemistry is the study of matter and the interactions among different types of matter. Matter is anything that has mass and occupies space. The first step in learning more about chemistry is to read as much as you can on your areas of interest. The book "Chemistry - The Easy Way" is an example of a "very low cost - almost free" guide to get you started. However, you can study chemistry at this web site totally free. You do not have to purchase anything. Use the menu chart above and start by studying ATOMS, and ELEMENTS. Then take a look at BASIC CHEMISTRY and follow it as an outline for studying the other subjects in the top menu table above. Go through all the topics in the menu table above, one at a time. Above all make it fun and interesting for yourself. Take your time, don't rush. Chemistry has four major areas of interest and many sub-specialties. 1. Organic Chemistry - The study of the element carbon and its compounds including living matter. 2. Inorganic chemistry - The study of all other elements of non-living matter. 3. Analytical chemistry - The study of “What is it?" or qualitative chemistry and "How much is there?" Which is quantitative chemistry. Analytical chemistry is the analysis of compounds. 4. Physical Chemistry - The quantitative aspects of the physical properties of substances and their relationship to chemical structure and composition. - - - - A few sub-specialties in chemistry are: Biochemistry - The study of biologically active substances.
- 2. Polymer chemistry - The chemistry of long chained molecules. Solid state chemistry - The behavior of solids. Organometallic chemistry - The chemistry of compounds in which a metal is bonded in an organic compound. o Liquid Crystal Chemistry o Medicinal Chemistry o Geochemistry o Polymer Chemistry o Photochemistry o Materials Chemistry o Electrochemistry o Catalysis o Physical Chemistry o Spectroscopy o Industrial and Applied Chemistry o Separation Science and Chromatography o Surface and Colloid Science o Interfacial Chemistry o Fuels And Petrochemicals o Natural Product Chemistry And so forth . . . . . It all starts with the concept of an "atom" so let’s find out more about what an atom might be, how it behaves, and what it is really made of:
- 3. Videos Then get familiar with many different types of atoms and the periodic chart of atoms: More on groups of atoms: From: www.Vertex42.com Printable Periodic Tables Next are two periodic tables you can download and print. These are excellent tables courtesy of www.Vertex42.com. Please visit their web site for more information. http://www.vertex42.com/ExcelTemplates/periodic-table-of-elements.html Periodic Table (Color) (.PDF) Periodic Table (Black/White) (.PDF)