what is a chemical reaction definition
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- 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.n a synthesis reaction, two or more simple substances combine to form a more complex substance. These reactions are in the general form: Two or more reactants yielding one product is another way to identify a synthesis reaction.
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- Definition of CHEMICAL for Kids. : any substance (as an acid) that is formed when two or more other substances act upon one another or that is used to produce a change in another substance.Spanish Central: Spanish translation of chemical. chemical. noun. : any substance (as an acid) that is formed when two or more other substances act upon one another or that is used to produce a change in another substance.
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- A chemical reaction is the change of a substance into a new one that has a different chemical identity.
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reaction A rearrangement of the atoms or molecules of two or more substances that come into contact with each other, resulting in the formation of one or more new substances. Chemical reactions are caused by electrons of one substance interacting with those of another.
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chain reaction reaction. 1. opposite action or counteraction; the response of a part to stimulation. 2. the phenomena caused by the action of chemical agents; a chemical process in which one substance is transformed into another substance or substances. chain reaction. one which is self-propagating; a chemical process in which each time a free radical is destroyed a new one is formed.
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- A chemical reaction is the process in which atoms present in the starting substances rearrange to give new chemical combinations present in the substances formed by the reaction. These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products.. When the reaction is between an acid (any compound that forms hydrogen ions) and a base (any compound that forms hydroxide ions), water is formed as one of the products. This is called neutralization. An example of a neutralization reaction is seen in the reaction above between sulfuric acid and sodium hydroxide.
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Chemical Reaction Definition and Examples Share. Reaction Definition: A reaction or chemical reaction is a chemical change which forms new substances. Reaction Examples: The chemical reaction H 2 (g) + ½ O 2 (g) → H 2 O(l) describes the formation of water from its elements.Also Known As: Chemical Reaction, Chemical Change. By Anne Marie Helmenstine, Ph.D.hare. Reaction Definition: A reaction or chemical reaction is a chemical change which forms new substances. Reaction Examples: The chemical reaction H 2 (g) + ½ O 2 (g) → H 2 O(l) describes the formation of water from its elements. Also Known As: Chemical Reaction, Chemical Change.
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What is a chemical reaction? A chemical reaction produces a chemical change as atoms are rearranged resulting in the production of one or more new substances. In all chemical reaction there is a conservation of mass. Atoms are neither created nor destroyed. Chemical reactions are generally difficult to reverse. eg.
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reaction Full Definition of REACTION. 1. a: the act or process or an instance of reacting b: resistance or opposition to a force, influence, or movement; especially: tendency toward a former and usually outmoded political or social order or policy.2.. : the force that a body subjected to the action of a force from another body exerts in the opposite direction. 4. a (1) : chemical transformation or change: the interaction of chemical entities (2) : the state resulting from such a reaction b: a process involving change in atomic nuclei.
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- chemical noun [C]. B2 any ​basic ​substance that is used in or ​produced by a ​reaction ​involving ​changes to ​atoms or ​molecules: The ​government has ​pledged to ​reduce the ​amount of chemicals used in ​food ​production. Each ​year, ​factories ​release millions of ​tons of ​toxic (= ​poisonous) chemicals into the ​atmosphere.
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reaction A rearrangement of the atoms or molecules of two or more substances that come into contact with each other, resulting in the formation of one or more new substances. 1  Chemical reactions are caused by electrons of one substance interacting with those of another. The reaction of an acid with a base, for example, results in the creation of a salt and water. Some, but not all, reactions can be reversed. See nuclear reaction.
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Chemical Reactions The rusting of a chain is an example of a chemical reaction. A chemical reaction is typically represented by a chemical equation, which represents the change from reactants to products. The left hand side of the equation represents the reactants, while the right hand side represents the products.
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- By Anne Marie Helmenstine, Ph.D. Definition: A chemical reaction is a chemical change which forms new substances. Also Known As: reaction, chemical change.Examples: The chemical reaction H 2 (g) + ½ O 2 (g) → H 2 O(l) describes the formation of water from its elements.y Anne Marie Helmenstine, Ph.D. Definition: A chemical reaction is a chemical change which forms new substances. Also Known As: reaction, chemical change.
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Types of Chemical Reactions Fireworks, dazzling sparkles with different colours are an example of chemical change or chemical reaction. A chemical reaction involves the conversion of one substance into another substance. The involved chemical substance is known as reactants and newly formed substances are called as a product.
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ilustreous-gre-barrons-essential-plus The person who creates an organization or a company is known as the founder. Founder is also a verb meaning fail miserably, which is something a company's founder hopes the company will never do. To flounder is to struggle, but to founder is to sink like a stone and fail. Both are fun as nouns, not so fun as verbs. Continue reading...
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Translations for chemical reaction Princeton's WordNet (0.00 / 0 votes) Rate this definition: chemical reaction, reaction (noun). (chemistry) a process in which one or more substances are changed into others.there was a chemical reaction of the lime with the ground water. reaction (noun).rinceton's WordNet (0.00 / 0 votes) Rate this definition: chemical reaction, reaction (noun). (chemistry) a process in which one or more substances are changed into others.
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Reaction mechanism Reaction mechanism. In chemistry, a reaction mechanism is the step by step sequence of elementary reactions by which overall chemical change occurs. A chemical mechanism is a theoretical conjecture that tries to describe in detail what takes place at each stage of an overall chemical reaction. The detailed steps of a reaction are not observable in most cases.
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- A chemical reaction is a process in which the identity of at least one substance changes. A chemical equation represents the total chemical change that occurs in a chemical reaction using symbols and chemical formulas for the substances involved. Reactants are the substances that are changed and products are the substances that are produced in a chemical reaction.
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What is a Chemical Reaction? A physical change, such as a state change or dissolving, does not create a new substance, but a chemical change does. In a chemical reaction, the atoms and molecules that interact with each other are called reactants. In a chemical reaction, the atoms and molecules produced by the reaction are called products. In a chemical reaction, only the atoms present in the reactants can end up in the products. No new atoms are created, and no atoms are destroyed.
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- Photos.com/AbleStock.com/Getty Images. A chemical reaction is the transformation of one or more chemical substances, called reactants, into another set of chemical substances, called products.. Chemical reactions involve the breakage and formation of chemical bonds, and this has an associated transfer of energy.ndothermic Reactions. Endothermic chemical reactions absorb energy from their surroundings. Usually these reactions cause the surroundings and the reaction mixture to decrease in temperature.
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- The vaccine can reduce the risk of your child getting genital warts or cervical cancer caused by some of the most common types of HPV infection. The HPV vaccine also protects against anogenital cancers.Research is under way to see if the vaccine can be used to prevent oral cancers also.he HPV vaccine will protect my child from getting some of the most common types of HPV. 1  True That's right. 2  The HPV vaccines protect against the most common types of HPV that cause problems. 3  False Sorry, that's not right.
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Classifying Organic Chemical Reactions Chemical Reaction: A transformation resulting in a change of composition, constitution and/or configuration of a compound ( referred to as the reactant or substrate ). Reactant or Substrate: The organic compound undergoing change in a chemical reaction.
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Chemical Reactions Bubbles, and heat change are examples of chemical reactions. When a chemical reaction happens, a compound is formed. It cant be separated.Another example could be change of colour.atteries: Chemical reactions within batteries produce electrons called electrochemical reactions. Halloween Lightsticks: A chemical reaction excites atoms causing the stick to glow. Homemade Volcano: When baking soda and vinegar are combined, they erupt as carbon dioxide gas is released.
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addition reaction chemical reaction, reaction - (chemistry) a process in which one or more substances are changed into others; there was a chemical reaction of the lime with the ground water.
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Combustion Definition (Chemistry) Combustion Definition: Combustion is a chemical reaction chemical that occurs between a fuel and an oxidizing agent that produces energy, usually in the form of heat and light. Related Articles.
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Chemical reaction Classically, chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms, with no change to the nuclei (no change to the elements present), and can often be described by a chemical equation.n a synthesis reaction, two or more simple substances combine to form a more complex substance. These reactions are in the general form: Two or more reactants yielding one product is another way to identify a synthesis reaction.