Complete the exercises below. Write a balanced equation for each of the following reactions: a. Sulfur dioxide reacts with water. b. Solid zinc sulfide reacts with hydrochloric acid. c. Elemental sulfur reacts with sulfite ion to form thiosulfate. d. Sulfur trioxide is dissolved in sulfuric acid.

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.

Understanding the types of chemical reactions is crucial for predicting products and writing balanced equations. Common types include synthesis, decomposition, single replacement, and double replacement reactions. Recognizing the type of reaction helps in determining the appropriate reactants and products involved.

Acid-base reactions involve the transfer of protons (H+) between reactants. In these reactions, acids donate protons while bases accept them. Recognizing the role of acids and bases in a reaction is essential for writing balanced equations, especially when dealing with reactions involving strong acids like hydrochloric acid and their interactions with sulfides.