when balanced, which equation would have the coefficient 3 in front of any of the reactants?\no zn + hcl →…

when balanced, which equation would have the coefficient 3 in front of any of the reactants?\no zn + hcl → zncl2 + h2\no h2so4 + b(oh)3 → b2(so4)3 + h2o\no fe + agno3 → fe(no3)2 + ag\no c2h4o2 + o2 → co2 +h2o

when balanced, which equation would have the coefficient 3 in front of any of the reactants?\no zn + hcl → zncl2 + h2\no h2so4 + b(oh)3 → b2(so4)3 + h2o\no fe + agno3 → fe(no3)2 + ag\no c2h4o2 + o2 → co2 +h2o

Answer

Explanation:

Step1: Balance the first equation

$Zn + 2HCl\rightarrow ZnCl_{2}+H_{2}$, no coefficient of 3 for reactants.

Step2: Balance the second equation

$3H_{2}SO_{4}+2B(OH){3}\rightarrow B{2}(SO_{4}){3}+6H{2}O$, coefficient of 3 for $H_{2}SO_{4}$ (a reactant).

Step3: Balance the third equation

$Fe + 2AgNO_{3}\rightarrow Fe(NO_{3})_{2}+2Ag$, no coefficient of 3 for reactants.

Step4: Balance the fourth equation

$C_{2}H_{4}O_{2}+2O_{2}\rightarrow 2CO_{2}+2H_{2}O$, no coefficient of 3 for reactants.

Answer:

$H_{2}SO_{4}+B(OH){3}\rightarrow B{2}(SO_{4}){3}+H{2}O$