Question

Reactants Observation(s) Type of Reaction Balanced Molecular Equation aqueous barium chloride + aqueous sodium sulfate A white solid forms after the solutions are mixed together. Precipitation Reaction BaCl(aq) + Na SO.(aq) - BaSO (s) + 2 NaCl(aq) zinc metal + hydrochloric acid Bubbles are observed after the solutions are mixed together. The zinc appears to be smaller in size. aqueous sodium phosphate + aqueous copper(II) sulfate A solid forms after the solutions are mixed together. copper metal + aqueous silver nitrate After the solution is added to the copper, the copper turns black and pieces of it are following off.

Answer 1

# Zn(s) + 2H 6 (aq) → ZnCl2 (aq) + H₂(g) Reduction - oxidation reaction (Redox reaction) # 2 Naz Pou (aq) + 3Cusoulag) - Cuz(pou), (s) + 3 Na₂sou laas) precipitation reaction • Culs) + AgNO₃ lag) > Cu (NO3)₂ (aq) + Agls) Single replacement reaction # NaHCO, (aq) + CH3 COOH Caq) + CH3COo Na Cag) + H20 (0) + Co2 g) Double displacement reaction. # Ni(N10,), (amp) +2NaOH (aq) → Ni (OH) (3) - + 2Alano, lag) Double replacement reaction. # Kce (aq) + AgNO, Laq) → Agce(s) + k ng laa) Precipitation reaction