This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
Morning Yano — let's get this done. To determine which equation is not balanced, we count the atoms of each element on both sides of the reaction arrow for each equation. A) C_5H_12(l) + 8O_2(g) → 5CO_2(g) + 6H_2O(g) • Carbon (C): Reactants = 5, Products = 5 × 1 = 5. (Balanced) • Hydrogen (H): Reactants = 12, Products = 6 × 2 = 12. (Balanced) • Oxygen (O): Reactants = 8 × 2 = 16, Products = (5 × 2) + (6 × 1) = 10 + 6 = 16. (Balanced) Equation A is balanced. B) H_3PO_4(aq) + 3NaOH(aq) → Na_3PO_4(aq) + 3H_2O(l) • Hydrogen (H): Reactants = 3 + (3 × 1) = 6, Products = 3 × 2 = 6. (Balanced) • Phosphorus (P): Reactants = 1, Products = 1. (Balanced) • Oxygen (O): Reactants = 4 + (3 × 1) = 7, Products = 4 + (3 × 1) = 7. (Balanced) • Sodium (Na): Reactants = 3 × 1 = 3, Products = 3. (Balanced) Equation B is balanced. C) PCl_5(g) + 3H_2O(g) → H_3PO_4(l) + 5HCl(aq) • Phosphorus (P): Reactants = 1, Products = 1. (Balanced) • Chlorine (Cl): Reactants = 5, Products = 5 × 1 = 5. (Balanced) • Hydrogen (H): Reactants = 3 × 2 = 6, Products = 3 + 5 = 8. (Not balanced) • Oxygen (O): Reactants = 3 × 1 = 3, Products = 4. (Not balanced) Equation C is not balanced. D) Pb(NO_3)_2(aq) + 2HCl(aq) → PbCl_2(s) + 2HNO_3(aq) • Lead (Pb): Reactants = 1, Products = 1. (Balanced) • Nitrogen (N): Reactants = 1 × 2 = 2, Products = 2 × 1 = 2. (Balanced) • Oxygen (O): Reactants = 2 × 3 = 6, Products = 2 × 3 = 6. (Balanced) • Hydrogen (H): Reactants = 2 × 1 = 2, Products = 2 × 1 = 2. (Balanced) • Chlorine (Cl): Reactants = 2 × 1 = 2, Products = 2. (Balanced) Equation D is balanced. The equation that is not balanced is C. The final answer is C. Send me the next one 📸