which equation is balanced?\no mg₃n₂ + h₂o → 3mgo + 2nh₃\no c₃h₈ + 5o₂ → h₂o + 3co₂\no zn + 2hcl → zncl₂ +…
which equation is balanced?\no mg₃n₂ + h₂o → 3mgo + 2nh₃\no c₃h₈ + 5o₂ → h₂o + 3co₂\no zn + 2hcl → zncl₂ + h₂\no 3h₂so₄ + 2fe → fe₂(so₄)₃ + h₂
Answer
Explanation:
Step1: Check elements in first equation
On left - hand side: 3 Mg, 2 N, 2 H, 1 O; on right - hand side: 3 Mg, 2 N, 6 H, 3 O. Not balanced.
Step2: Check elements in second equation
On left - hand side: 3 C, 8 H, 10 O; on right - hand side: 3 C, 2 H, 7 O. Not balanced.
Step3: Check elements in third equation
On left - hand side: 1 Zn, 2 H, 2 Cl; on right - hand side: 1 Zn, 2 H, 2 Cl. Balanced.
Step4: Check elements in fourth equation
On left - hand side: 6 H, 3 S, 12 O, 2 Fe; on right - hand side: 2 H, 3 S, 12 O, 2 Fe. Not balanced.
Answer:
Zn + 2HCl → ZnCl₂ + H₂