what are chemical reactions
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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.
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Types of Chemical Reactions 1 In a synthesis reaction two or more chemical species combine to form a more complex product. 2  A + B → AB. 3  The combination of iron and sulfur to form iron (II) sulfide is an example of a synthesis reaction 4  : 8 Fe + S 8 → 8 FeS. chemical reaction is a process that is usually characterized by a chemical change in which the starting materials (reactants) are different from the products. Chemical reactions tend to involve the motion of electrons, leading to the formation and breaking of chemical bonds.
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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.nother possibility is that only a portion of one molecule is transferred to the other molecule. This type of reaction occurs, for example, in redox and acid-base reactions. In redox reactions, the transferred particle is an electron, whereas in acid-base reactions it is a proton.
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Chemical Reactions CHEMICAL REACTIONS-process by which one or more atoms of one or more substances are rearranged to form different substances-this is also known as a chemical change-indications of chemical changes occuring is temperature change, color change, odor, formation of gas bubbles, and appreance of a solid.RODUCTS OF A DOUBLE-REPLACEMENT REACTION-a solid known as a precipitate is normally produced in a double-replacement reaction-of the two different types of compounds formed in a double-replacement element one is often a solid, gas, or water.   .
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What is a chemical reaction? Expert on ancient and European history. A chemical reaction occurs when one or more chemicals react to become different chemicals. A chemical reaction is characterized by the re-arrangement of atoms from the reactant side of the equation to the product side.It's a bit like square dancing because at any given time you may have a different partner than when you started but no matter how you re-arrange the dancers, you always have the same people. chemical reaction is a change in which one kind of matter changes into a different kind of matter with different properties. Reactant is a substance used in a chemical react … ion and a product is a substance made in a chemical reaction. Hope this is helpful! ;).
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Types of Chemical Reactions A chemical reaction is a process that is usually characterized by a chemical change in which the starting materials (reactants) are different from the products. Chemical reactions tend to involve the motion of electrons, leading to the formation and breaking of chemical bonds. Acid-Base Reaction. 2  An acid-base reaction is type of double displacement reaction that occurs between an acid and a base. 3  The H + ion in the acid reacts with the OH-ion in the base to form water and an ionic salt: 4  HA + BOH → H 2 O + BA.
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What is a Chemical Reaction? 1 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.
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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. properly written chemical equation provides information about reactants, products, molecule-to-molecule relationships between reactants and products, and mole-to-mole relationships. between reactants and products.
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- Chemical reactions are processes in which substances change into other substances. You know a chemical reaction takes place if one or more of these occur: 1  Color changes-Different combinations of molecules reflect light differently. 2  A color change indicates a change in molecules.
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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 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.hemical reactions happen at a characteristic reaction rate at a given temperature and chemical concentration.
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Types of Chemical Reactions A chemical reaction is a process that is usually characterized by a chemical change in which the starting materials (reactants) are different from the products. Chemical reactions tend to involve the motion of electrons, leading to the formation and breaking of chemical bonds.ere are some common reaction types. However, if you are asked to name the main 4, 5 or 6 types of chemical reactions, here is how they are categorized. 1  Direct Combination or Synthesis Reaction. 2  In a synthesis reaction two or more chemical species combine to form a more complex product.
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THAT is the question! Chemical changes are a result of chemical reactions. All chemical reactions involve a change in substances and a change in energy. Neither matter or energy is created or destroyed in a chemical reaction---only changed. There are so many chemical reactions that it is helpful to classify them into 4 general types which include the following: SYNTHESIS REACTION.
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- A chemical change (or a chemical reaction) is said to have occurred if the atoms making up a molecule are rearranged. This can happen if a molecule loses some of its atoms, if some atoms are added to a molecule, or if some of the atoms in a molecule get replaced by other atoms.
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- Definition. noun, plural: chemical reactions. A process in which one or more substances (reactants) are chemically changed into one or more new substances (products). Chemical changes may involve motion of electrons in the forming and breaking of chemical bonds.Supplement. process in which one or more substances (reactants) are chemically changed into one or more new substances (products). Chemical changes may involve motion of electrons in the forming and breaking of chemical bonds. Supplement.
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Types of Chemical Reactions Updated February 09, 2017. A chemical reaction is a process that is usually characterized by a chemical change in which the starting materials (reactants) are different from the products. Chemical reactions tend to involve the motion of electrons, leading to the formation and breaking of chemical bonds.
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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.
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Chemical reaction Home » Chemical reaction. File:Example.jpgDefinition. noun, plural: chemical reactions. A process in which one or more substances (reactants) are chemically changed into one or more new substances (products). Chemical changes may involve motion of electrons in the forming and breaking of chemical bonds. Supplement.
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- A chemical reaction occurs when chemicals combine to form new substances with new properties. Burning is a rapid type of chemical reaction that produces large amounts of heat and light. An example of a fast chemical reaction is an explosion, such as the exploding of fireworks or a bomb. An example of a slow chemical reaction is rusting (or oxidisation). One of the chemicals produced during burning is carbon dioxide, which we now refer to as a 'greenhouse gas'.
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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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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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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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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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CHEMICAL REACTION chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions. addition reaction - a chemical reaction in which one molecule is added to another. aldol reaction - a reaction of aldehydes resulting in an aldol. chain reaction - a series of chemical reactions in which the product of one is a reactant in the next.
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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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Chemical Reactions A chemical change must occur. You start with one molecule and turn it into another. Chemical bonds are made or broken in order to create a new molecule. One example of a chemical reaction is the rusting of a steel garbage can. That rusting happens because the iron (Fe) in the metal combines with oxygen (O 2) in the atmosphere. Chemical bonds are created and destroyed to finally make iron oxide (Fe 2 O 3).