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Ch.3 - Molecules, Compounds & Chemical Equations
Tro - Chemistry: A Molecular Approach 4th Edition
Tro4th EditionChemistry: A Molecular ApproachISBN: 9780134112831Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoTro 4th EditionCh.3 - Molecules, Compounds & Chemical EquationsProblema 108c,d
Capitolo 3, Problema 108c,d

Write the balanced chemical equation for each reaction.
c. Sulfur dioxide gas reacts with oxygen gas to form sulfur trioxide gas.
d. Gaseous ammonia (NH3) reacts with gaseous oxygen to form gaseous nitrogen monoxide and gaseous water.

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Identify the reactants and products in the chemical reaction: Reactants are NH_3 (ammonia) and O_2 (oxygen), and products are NO (nitrogen monoxide) and H_2O (water).
Write the unbalanced chemical equation using the chemical formulas: NH_3 + O_2 \(\rightarrow\) NO + H_2O.
Balance the nitrogen atoms: There is 1 nitrogen atom in NH_3 and 1 in NO, so they are already balanced.
Balance the hydrogen atoms: There are 3 hydrogen atoms in NH_3 and 2 in H_2O. To balance, place a coefficient of 2 in front of NH_3 and a coefficient of 3 in front of H_2O.
Balance the oxygen atoms: After balancing hydrogen, there are 2 oxygen atoms in NO and 3 in H_2O, totaling 5 oxygen atoms. Place a coefficient of \(\frac{5}{2}\) in front of O_2, or alternatively, double all coefficients to avoid fractions.

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Balancing Chemical Equations

Balancing chemical equations involves ensuring that the number of atoms for each element is the same on both the reactant and product sides. This is based on the law of conservation of mass, which states that matter cannot be created or destroyed in a chemical reaction. To balance an equation, coefficients are adjusted in front of the chemical formulas.
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Balancing Chemical Equations

Chemical Reaction Types

The reaction described is a combustion reaction, where a substance reacts with oxygen to produce energy, typically in the form of heat and light. In this case, ammonia (NH3) reacts with oxygen (O2) to produce nitrogen monoxide (NO) and water (H2O). Understanding the type of reaction helps in predicting the products and balancing the equation.
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Common Types of Alkane Reactions

Stoichiometry

Stoichiometry is the calculation of reactants and products in chemical reactions based on their molar ratios. It allows chemists to determine how much of each substance is needed or produced in a reaction. In balancing the equation for the reaction between ammonia and oxygen, stoichiometric coefficients will be used to ensure that the number of atoms of each element is conserved.
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Stoichiometry Concept
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