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chemical    音标拼音: [k'ɛməkəl] [k'ɛmɪkəl]
a. 化学的
n. 化学制品,化学药品

化学的化学制品,化学药品

chemical
化学

chemical
adj 1: relating to or used in chemistry; "chemical engineer";
"chemical balance" [synonym: {chemical}, {chemic}]
2: of or made from or using substances produced by or used in
reactions involving atomic or molecular changes; "chemical
fertilizer"
n 1: material produced by or used in a reaction involving
changes in atoms or molecules [synonym: {chemical}, {chemical
substance}]

Chemical \Chem"ic*al\, n.
A substance used for producing a chemical effect; a reagent.
[1913 Webster]


Chemical \Chem"ic*al\, a.
Pertaining to chemistry; characterized or produced by the
forces and operations of chemistry; employed in the processes
of chemistry; as, chemical changes; chemical combinations.
[1913 Webster]

{Chemical attraction} or {Chemical affinity}. See under
{Attraction}.
[1913 Webster]

152 Moby Thesaurus words for "chemical":
Chile saltpeter, absolute alcohol, acetate, acetone, acid, acidity,
agent, alcohol, aldehyde, alkali, alkalinity, alloisomer, amine,
ammonia, amyl alcohol, anhydride, anion, antacid, arsenate,
arsenite, atom, base, basic, basic anhydride, benzoate,
bicarbonate, bicarbonate of soda, bichloride of mercury,
biochemical, bisulfate, borate, borax, bromide, calcium carbonate,
calcium hydroxide, carbide, carbohydrate, carbon dioxide,
carbon monoxide, carbonate, cation, chemical element, chemicals,
chemicobiological, chemicoengineering, chemicomineralogical,
chemicophysical, chemurgic, chlorate, chlorite, chromate,
chromoisomer, citrate, compound, copolymer, copolymeric,
copolymerous, copperas, cyanide, dehydrated alcohol, dichromate,
dimer, dimeric, dimerous, dioxide, disulfide, electrochemical,
element, elemental, elementary, ester, ethanol, ether, ethyl,
ethyl alcohol, fluoride, formaldehyde, fulminate, halide, halogen,
heavy chemicals, heteromerous, high polymer, homopolymer, hydracid,
hydrate, hydride, hydrocarbon, hydroxide, hypochlorite,
inorganic chemical, inorganic chemistry, iodide, ion, isomer,
isomerous, isopropyl alcohol, ketone, lactate, macrochemical,
macromolecule, metamer, metameric, methane, methanol, methyl,
methyl alcohol, molecule, monomer, monomerous, monoxide,
neutralizer, niter, nitrate, nitride, nitrite, nonacid,
organic chemical, oxalate, oxide, oxyacid, permanganate, peroxide,
petrochemical, phosphate, phosphide, photochemical,
physicochemical, phytochemical, polymer, polymeric, potash,
potassium nitrate, pseudoisomer, radical, radiochemical, reagent,
sal ammoniac, salt, saltpeter, silicate, sodium bicarbonate,
sodium bromide, sodium chloride, sodium hypochlorite, sulfacid,
sulfate, sulfide, sulfite, tartrate, thermochemical, trimer

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  • Chemical reaction | Definition, Equations, Examples, Types - Britannica
    A chemical reaction is a process in which one or more substances, the reactants, are converted to one or more different substances, the products Substances are either chemical elements or compounds
  • Chemical Definition Meaning | Britannica Dictionary
    CHEMICAL meaning: 1 : of or relating to chemistry; 2 : working by means of chemicals
  • Chemical kinetics | Definition, Equations, Facts | Britannica
    The detailed mechanism by which a chemical process occurs is referred to as the reaction path, or pathway The vast amount of work done in chemical kinetics has led to the conclusion that some chemical reactions go in a single step; these are known as elementary reactions
  • Chemical compound | Definition, Examples, Types | Britannica
    All the matter in the universe is composed of the atoms of more than 100 different chemical elements, which are found both in pure form and combined in chemical compounds
  • Fluorine | Uses, Properties, Facts | Britannica
    Fluorine, the most reactive chemical element and the lightest member of the halogen elements Its chemical activity can be attributed to its extreme ability to attract electrons (it is the most electronegative element) and to the small size of its atoms
  • Dow Chemical Company | History, Products, Lawsuits, Facts . . .
    Dow Inc (formerly Dow Chemical Company) is an American chemical and plastics manufacturer that is one of the world’s leading suppliers of chemicals, plastics, and sealants
  • Chemical energy | Definition Facts | Britannica
    The chemical energy in food is converted by the body into mechanical energy and heat The chemical energy in coal is converted into electrical energy at a power plant The chemical energy in a battery can also supply electrical power by means of electrolysis
  • Chemical change | Britannica
    A chemical change (that is, a chemical reaction) is one in which the organization of the atoms is altered An example of a chemical reaction is the burning of methane in the presence of molecular oxygen (O2) to form carbon dioxide (CO2) and…
  • Pyrazine | Aromatic, Aromaticity, Heterocyclic | Britannica
    The simplest member of the pyrazine family is pyrazine itself, a colourless, water-soluble solid with molecular formula C 4 H 4 N 2 Pyrazine is seldom prepared Its hexahydro derivative, piperazine, was first made in 1888; several of its derivatives find use as chemical raw materials
  • Chemical equilibrium | Definition, Equation, Facts | Britannica
    Chemical equilibrium is the condition in the course of a reversible chemical reaction in which no net change in the amounts of reactants and products occurs A reversible chemical reaction is one in which the products, as soon as they are formed, react to produce the original reactants





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