what chemical
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- Definition. 1  As a noun, the common definition of chemical is a substance that is produced or used in a process (reaction) involving changes to atoms or molecules. 2  As an adjective, chemical means of or pertaining to chemistry.
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Chemical substance A chemical substance[1] also known as a pure substance is a form of matter that has constant chemical composition and characteristic properties.[2] It cannot be separated into components by physical separation methods, i.e., without breaking chemical bonds.[3] Chemical substances can be chemical elements, chemical compounds, ions or alloys.
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Chemical formula A chemical formula is a way of expressing information about the proportions of atoms that constitute a particular chemical compound or molecule, using a single line of chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus and minus signs. These are limited to a single typographic line of symbols, which may include subscripts and superscripts. A chemical formula is not a chemical name, and it contains no words. Although a chemi
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Chemical substance A chemical substance, also known as a pure substance, is a form of matter that has constant chemical composition and characteristic properties. It cannot be separated into components by physical separation methods, i.e., without breaking chemical bonds.
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- Definition. 1  As a noun, the common definition of chemical is a substance that is produced or used in a process (reaction) involving changes to atoms or molecules. The term is sometimes defined more broadly as a substance. 2  As an adjective, chemical means of or pertaining to chemistry. Chemistry is the study of matter and its transformations.
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- n. 1. (Chemistry) any substance used in or resulting from a reaction involving changes to atoms or molecules, especially one derived artificially for practical use. adj. 2. (Chemistry) of or used in chemistry: chemical balance. 3. (Chemistry) of, made from, or using chemicals: chemical fertilizer.(ˈkɛm ɪ kəl). n. adj.. a substance produced by or used in chemistry. 2. chemicals, Slang. narcotic or mind-altering drugs or substances. 3. of, used in, produced by, or concerned with chemistry or chemicals: a chemical formula. 4. used in chemical warfare: chemical weapons.
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Chemical substance A chemical substance is a form of matter that has constant chemical composition and characteristic properties. It cannot be separated into components by physical separation methods, i.e., without breaking chemical bonds. Chemical substances can be chemical elements, chemical compounds, ions or alloys. chemical substance (also called a pure substance) may well be defined as any material with a definite chemical composition in an introductory general chemistry textbook.
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"""Chemical"" Is Not a Bad Word" They may not be considered clear to the less scientifically inclined - here's my simple definition in progress, “Chemicals are elements, or a combination of elements, with a specific composition and structure. All matter is made of chemicals!” Unfortunately these days, the term “chemicals” is colloquially misrepresented.
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chemical that part of the animals' environment that is composed of chemicals. For farm livestock this includes fertilizers, defoliants, worm drenches, insect sprays, adjuvants to feed. For companion animals see household chemical (below).
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Ammonia Ammonia is a colorless inorganic compound of nitrogen and hydrogen with the formula NH3, usually in gaseous form with a characteristic pungent odor. Ammonia is irritating to the skin, eyes, nose, throat, and lungs. It is essential for many biological processes and has various industrial applications.
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AMPHOTERIC chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions. acidic - being or containing an acid; of a solution having an excess of hydrogen atoms (having a pH of less than 7)
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List of actors considered for the James Bond character List of actors considered for the James Bond character. From Wikipedia, the free encyclopedia. This is a list of actors who were considered for the role of James Bond, both officially (auditioned by the film producers) and unofficially (supported by fans and celebrities) but did not play the role of agent 007.The separate list of James Bond Films details the actors who have played the role of agent 007.he following actors were considered for the role of James Bond, but were cast supporting or opposing characters. Colin Salmon was also rumoured to be one of many actors to replace Pierce Brosnan as James Bond, a role that would go to Daniel Craig.
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Chemical formula A chemical formula is a way of expressing information about the proportions of atoms that constitute a particular chemical compound, using a single line of chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus (+) and minus (−) signs.tructural formula for butane. This is not a chemical formula. Examples of chemical formulas for butane are the empirical formula C 2 H 5, the molecular formula C 4 H 10 and the condensed (or semi-structural) formula CH 3 CH 2 CH 2 CH 3.
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What Is a Chemical Compound? - Definition & Examples You probably have a container of salt in your kitchen. Salt is a very important chemical compound. It is required by our bodies to regulate electrolytes. Common table salt is sodium chloride and is formed when sodium atoms and chlorine atoms are joined together with an ionic bond. This means that the sodium loses one electron and the chlorine atom gains one electron to form the bond and create the chemical compound.
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Chemical substance A chemical substance is a form of matter that has constant chemical composition and characteristic properties. It cannot be separated into components by physical separation methods, i.e., without breaking chemical bonds. Chemical substances can be chemical elements, chemical compounds, ions or alloys.hemical substances are often called 'pure' to set them apart from mixtures. A common example of a chemical substance is pure water; it has the same properties and the same ratio of hydrogen to oxygen whether it is isolated from a river or made in a laboratory.
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What Is a Chemical Formula? A chemical formula is an expression which states the number and type of atoms (given using element symbols) present in a molecule of a substance. A chemical formula is an expression which states the number and type of atoms (given using element symbols) present in a molecule of a substance.
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Chemical compound A chemical compound is a chemical formed from atoms of different chemical elements. The different atoms are joined by chemical bonds. The elements stick together so strongly that the compound behaves like one substance. The chemical that is made depends upon what atoms it is made of and how they are joined together.
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Translations for chemical reaction Nuclear chemistry is a sub-discipline of chemistry that involves the chemical reactions of unstable and radioactive elements where both electronic and nuclear changes may occur. The substance (or substances) initially involved in a chemical reaction are called reactants or reagents. Chemical reactions are usually characterized by a chemical change, and they yield one or more products, which usually have properties different from the reactants.
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Chemical substance Steam and liquid water are two different forms of the same chemical substance, water. A chemical substance is a form of matter that has constant chemical composition and characteristic properties. It cannot be separated into components by physical separation methods, i.e., without breaking chemical bonds. Chemical substances can be chemical elements, chemical compounds, ions or alloys.
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chemical (Chemistry) any substance used in or resulting from a reaction involving changes to atoms or molecules, esp one derived artificially for practical use. adj. 1. (Chemistry) of or used in chemistry: chemical balance. 2. (Chemistry) of, made from, or using chemicals: chemical fertilizer.
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Definitions &Translations Chemical. Chemical is the first single from Joseph Arthur's second studio album Come to Where I'm From. The single was released in the UK and Australia on June 26, 2000 via Real World Records and Virgin Records. The single is long out of print and is now hard to find. Joseph very rarely played Chemical live--the first known version was in New York City in March 1998.
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- Chemically, water is a compound of hydrogen and oxygen, having the formula H 2 O. It is chemically active, reacting with certain metals and metal oxides to form bases, and with certain oxides of nonmetals to form acids. It reacts with certain organic compounds to form a variety of products, e.g., alcohols from alkenes.
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ammonia (NH3) the simplest chemical compound of nitrogen and hydrogen. Ammonia is one of the most important products of the chemical industry; the synthesis of ammonia from hydrogen and atmospheric nitrogen is the basic method for obtaining so-called fixed nitrogen.
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Definitions &Translations Of or relating to chemistry. Chemical(adj) pertaining to chemistry; characterized or produced by the forces and operations of chemistry; employed in the processes of chemistry; as, chemical changes; chemical combinations. Chemical(noun) a substance used for producing a chemical effect; a reagent. Chemical.
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- What is the chemical name for sugar? Sugar is the name of a group of organic compounds such as glucose, fructose and sucrose. Each of these compounds can be expressed by its own unique chemical formula, almost always as CnHnOn, where n is often a number between 3 and 7.
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Definitions &Translations Wiktionary (0.00 / 0 votes) Rate this definition: chemical (Noun). Any specific chemical element or chemical compound. chemical (Noun). An artificial chemical compound. I color my hair with henna, not chemicals. chemical (Noun). An addictive drug.