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Which of the following chemical equations are balanced? (You need not balance the equations. Just determine whether or not they are balanced as written.) i. Mg + 2 H₂O → Mg(OH)₂ + H₂ ii. 4 LiH + AlCl₃ → 2 LiAlH₄ + 2 LiCl iii. 2 KOH + CO₂ → K₂CO₃ + H₂O iv. 2 Sn + 2 H₂SO₄ → 2 SnSO₄ + SO₂ + 2 H₂O (a) I and II (b) I and III (c) II and III (d) II and IV
Which of the following chemical equations are balanced? (You need not balance the equations. Just determine whether or not they are balanced as written.) i. Mg + 2 H₂O → Mg(OH)₂ + H₂ ii. 4 LiH + AlCl₃ → 2 LiAlH₄ + 2 LiCl iii. 2 KOH + CO₂ → K₂CO₃ + H₂O iv. 2 Sn + 2 H₂SO₄ → 2 SnSO₄ + SO₂ + 2 H₂O (a) I and II (b) I and III (c) II and III (d) II and IV
Final Answer:The balancedChemical Equationsare from options (a) I and II.Explanation:To determine whether the given chemical equations are balanced, we'll check both sides for an equalnumberof each type of atom.For equation i:Mg + 2 H₂O → Mg(OH)₂ + H₂Atoms on the left: Mg = 1, H = 4, O = 2Atomson the right: Mg = 1, H = 4, O = 2This equation is balanced.For equation ii:4 LiH + AlCl₃ → 2 LiAlH₄ + 2 LiClAtoms on the left: Li = 4, H = 4, Al = 1, Cl = 3Atoms on the right: Li = 4, H = 4, Al = 1, Cl = 3This equation is balanced.For equation iii:2 KOH + CO₂ → K₂CO₃ + H₂OAtoms on the left: K = 2, O = 3, H = 2, C = 1Atoms on the right: K = 2, O = 3, H = 2, C = 1This equation is also balanced.For equation iv:2 Sn + 2 H₂SO₄ → 2 SnSO₄ + SO₂ + 2 H₂OAtoms on the left: Sn = 2, H = 4, S = 2, O = 8Atoms on the right: Sn = 2, H = 4, S = 3, O = 10This equation is not balanced since there is a difference in the number of sulfur andoxygenatoms on either side.Based on the above, equations I, II, and III are balanced. Hence, the correct option is (a) I and II.Learn more aboutChemical Equationsbrainly.com/question/32302531#SPJ11...