Write and balance the equation for the combustion of: a. In this equation we see that there are different numbers of oxygen and hydrogen atoms on both sides of the equation, which requires an adjustment. Chapter 3 Stoichiometry: Calculations with Chemical Formulas and Equations. Butane gas (CH 4 ) combines with oxygen (O 2 ) to irreversibly generate carbon dioxide (CO 2 ) and water (H 2 O) The coefficients in a balanced chemical equation specify the relative amounts in moles of each of the substances involved in the reaction. This chemical equation represents the combustion reaction of butane. The formulas of the reactants are represented on the left side of the chemical equation and those of the products on the right side, both separated by a full-headed arrow in the case of irreversible reactions (which only proceed from left to right) or a double arrow in the case of reversible reactions (they take place in both directions). To describe chemical reactions we use a notation, the chemical equation. A chemical transformation can be evidenced by the change in physical properties of the solution, such as: change in color, release or absorption of heat, formation of precipitates or release of gases. In a chemical reaction, a set of substances called reactants are transformed into others called products. Written by: Germán Fernández Category: chemical reactions
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