1. Balance the following
equations.
–a) Zinc + hydrochloric acid ® zinc chloride + Hydrogen
– __ Zn (s) + __
HCl (aq) ® __ ZnCl2 (aq) + __ H2 (g)
–b) Sodium oxide + sulfuric acid à sodium
sulfate + water
– __ Na2O (s) + __ H2SO4 (aq) ® __ Na2SO4 (aq) + __ H2O (l)
–c) copper oxide + hydrochloric acid à
copper(II) chloride + water
– __ CuO (s) + __
HCl (aq) ® __ CuCl2 (aq) + __ H2O (l)
–d) Zinc oxide + sulfuric acid à zinc
sulfate + water
– __ ZnO (s) + __
H2SO4 (aq) ® __ ZnSO4 (aq) + __ H2O (l)
–e) Sodium hydroxide + sulfuric acid à sodium
sulfate + water
– __ NaOH (aq) + __
H2SO4 (aq) ® __ Na2SO4 (aq) + __ H2O (l)
–f) Barium hydroxide + hydrochloric acid à barium
chloride + water
– __ Ba(OH)2 (aq) + __ HCl (aq) ® __ BaCl2 (aq) + __ H2O (l)