5
RCMultiple Choice
Unit Test — Cumulative exam
Question 5 • LHS Physical Science
When balanced, which equation would have the coefficient 3 in front of any of the reactants?
Answer
A
Zn + HCl ZnCl2 + H2
B
H2SO4 + B(OH)3 B2(SO4)3 + H2OC
Fe + AgNO3 Fe(NO3)2 + AgD
C2H4O2 + O2 CO2 +H2O