{"knowledge_schema": {"broad_category": "Chemistry \u2192 Stoichiometry \u2192 Chemical Reactions", "refinement": "This problem involves analyzing a chemical reaction involving salts and the gases produced from their thermal decomposition.", "specific_scope": "The focus is on determining the total number of atoms in the chemical formulas of two salts, A and B, based on the results of the reaction and the gases produced.", "goal": "Calculate the total number of atoms in the chemical formulas of salts A and B using the provided data about gas production and weight changes in the reaction tubes."}, "summary": "This problem is rooted in chemistry, specifically stoichiometry, where we analyze the decomposition of salts A and B upon heating. The results from the reaction, including the weight changes in the tubes and the volume of gas produced, provide clues to deduce the chemical formulas of the salts. The goal is to determine the total number of atoms present in these salts based on the information given, leading to the conclusion that the total number of atoms is 17."}