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Chemical reaction A process in which one

Chemical reaction A process in which one or more substances, called reactants, are converted to product(s), 67. See also Reaction, nonmetals, 575q, 555-558 Chernobyl nuclear accident, 525-526 Chiral center Carbon atom bonded to four different groups, 600 Chiral drugs, 601 Chloride ores, 535-536 Chlorinated water, 556 Chlorine... [Pg.684]

Chemical reaction a process in which one or more substances are changed into one or more new substances by the reorganization of component atoms. [Pg.828]

The word chemical is used to describe processes that result in a change in identity. The combination of hydrogen and oxygen to form water is a chemical change or chemical reaction—a process in which one or more substances (the reactants, which can be elements or compounds, or both) are converted to one or more different substances (the products, which can also be elements or compounds, or both). [Pg.21]

Having discussed the masses of atoms and molecules, we turn next to what happens to atoms and molecules in a chemical reaction, a process in which a substance (or substances) is changed into one or more new substances. In order to communicate with one another about chemical reactions, chemists have devised a standard way to represent them using chemical equations. A chemical equation uses chemical symbols to show what happens during a chemical reaction. In this section we will learn how to write chemical equations and balance them. [Pg.84]

Chemical reaction. A process in which a substance (or substances) is changed into one or more new substances. (3.7) Chemistry. The study of matter and the changes it undergoes. (1.1)... [Pg.1043]

Chemical Reactions and Chemical Equations—Chemical reactions are processes in which one or more starting substances, the reactants, form one or more new substances, the products. A chemical reaction can be represented symbolically in a chemical equation, with formulas of reactants on the left and formulas of products on the right reactants and products are separated by an arrow. The equation must be balanced. A balanced equation reflects the true quantitative relationships between reactants and products. An equation is balanced by placing stoichiometric coefficients before formulas to signify that the total number of each kind of atom is the same on each side of the equation. The physical states of reactants and products can be indicated by symbols, such as (s), (1), (g), and (aq), signifying solid, liquid, gas, and aqueous solution, respectively. [Pg.139]

A chemical reaction is a process in which one set of chemical substances (reactants) is converted into another (products). It involves making and breaking chemical bonds and the rearrangement of atoms. Chemical reactions are represented by balanced chemical equations, with chemical formulas sym-bohzing reactants and prodncts. For specific chemical reactants, two questions may be posed abont a possible chemical reaction. First, will a reaction occnr Second, what are the possible products if a reaction occurs This... [Pg.227]

A chemical reaction is a process in which one set of substances, called reactants, is converted to a new set of substances, called products. In other words, a chemical reaction is the process by which a chemical change occurs. In many cases, though, nothing happens when substances are mixed each retains its original composition and properties. We need evidence before we can say that a reaction has occurred. Some of the types of physical evidence to look for are shown here ... [Pg.112]

Deseribe in less than one page each the chemical reactions and processes by which the following solids processes are carried out Each involves a multistep process with physical separation steps between ehemieal steps. [Pg.394]

Oxidation is a process in which an atom or a group of atoms taking part in a chemical reaction loses one or more electrons, e.g.,... [Pg.16]

The subsequent reactions after the initial pyrolytic process can be utilized with practical results. Besides the pyrolysis of a pure sample, the intentional pyrolysis of a mixture in which one of the components generates reactive products (such as tetramethyl ammonium hydroxide) can be applied to influence the chemical structure of the products generated at the end of the pyrolysis. This subject will be discussed in Section 2.7. [Pg.28]


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Chemical reaction processes

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