Chemical equations 2 the physical states of the

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Unformatted text preview: s” or “produces.” Chemical Equations (2) • The physical states of the reactants and products are provided in the equation. – A (g) following a formula tells us the substance is a gas. Solids are described with (s). Liquids are described with (l). When a substance is dissolved in water, it is described with (aq) for “aqueous,” which means “mixed with water.” Chemical Equations (3) • The relative numbers of particles of each reactant and product are indicated by numbers placed in front of the formulas. – These numbers are called coefficients. An equation containing correct coefficients is called a balanced equation. – If a formula in a balanced equation has no stated coefficient, its coefficient is understood to be 1. Chemical Equations (4) • If special conditions are necessary for a reaction to tak...
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This note was uploaded on 05/21/2013 for the course CHEM 100 taught by Professor Bill during the Spring '11 term at Indian Institute of Technology, Delhi.

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