Question

ple-choice questions: Choose the BEST answer and print the answer in Capital Letter in pace provided. Use ink pen only. .. Given the unbalanced equation: 2 Al +3CuSO4 → Al2(SO4)3 + Cu. when properly balanced, the sum of the balancing coefficients is 3.7 8 . 9 2. Given the unbalanced equation: PbCl2 + Na2CrO4 + PbCrO4 +2NaCl. When properly balanced, the sum of the balancing coefficients is 4.2 3. 3 2. 4 D. 5 3. Given the unbalanced equation: Mg +2 AgNO3 → Mg(NO3)2 +2 Ag. When properly balanced, the sum of the balancing coefficients is A. 4 B. 6 C. 8 D. 10 24. Given the unbalanced equation: CzH4 +302 +2002 +2H20. When properly balanced, the sum of the balancing coefficients is A. 1 B. 9 C. 11 D. 8

Answer 1

@ Al + CuSO4 -> Alz (504)3 + en Balonced form. 2A2 + 3 CuSO4 →. Al2(S04), f Blu. Sum of balancing co-efficients is. 2 2+3+3+1 28.9 PbCl + NaCroopbero, tanace this is the balomeed form and the sum of balomeing coefficient Itit 3) 5 & Mg + 2 AgNO3 → Mg(NO3)2 + 2Ag This is the total salomeedy equation and the sum of balancing coefficient is - 1+ 2+1+2 is - 1+2 4 G Hy +30₂ 20₂ + 2H2O This is the balanced equation and the sum of total coefficient is 1+ 3 + 2 + 22) 8