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
Hey Yano, good to see you again. Step 1: Identify the reactants and products. Magnesium (Mg) reacts with hydrochloric acid (HCl). This is a single displacement reaction where a metal reacts with an acid to produce a salt and hydrogen gas. The salt formed will be magnesium chloride (MgCl_2) because magnesium has a valency of 2+ and chlorine has a valency of 1-. The gas produced is hydrogen gas (H_2). Step 2: Write the unbalanced chemical equation with state symbols. Mg(s) + HCl(aq) → MgCl_2(aq) + H_2(g) Step 3: Balance the equation. Count the atoms on both sides: Reactants: Mg: 1 H: 1 Cl: 1 Products: Mg: 1 H: 2 Cl: 2 To balance the hydrogen and chlorine atoms, place a coefficient of 2 in front of HCl on the reactant side. Mg(s) + 2HCl(aq) → MgCl_2(aq) + H_2(g) Step 4: Verify the balanced equation. Reactants: Mg: 1 H: 2 Cl: 2 Products: Mg: 1 H: 2 Cl: 2 The equation is now balanced. Step 5: Compare with the given options. Option A matches the balanced equation derived. A. Mg(s) + 2HCl(aq) → MgCl_2(aq) + H_2(g) The final answer is A. Send me the next one 📸