Complete the molecular and ionic reaction equations: 1) CuSO4 + NaOH 2) KCl + Na3PO3 3) Al2 (SO4) 3

| March 23, 2021 | education

Complete the molecular and ionic reaction equations: 1) CuSO4 + NaOH 2) KCl + Na3PO3 3) Al2 (SO4) 3 + 3BaCl 4) Na2SO3 + H2SO4 5) Na2CO3 + H2SO4 6) NaOH + phenolophtholein + H2SO4 7) CuSO4 + NaOH

1) CuSO4 + 2NaOH = Cu (OH) 2 + Na2SO4
Cu (+2) + SO4 (-2) + 2Na (+) + 2OH (-) = Cu (OH) 2 + 2Na (+) + SO4 (-2)
Cu (+2) + 2OH (-) = Cu (OH) 2

2) 3KCl + Na3PO4 = K3PO4 + 3NaCl
3K (+) + 3Cl (-) + 3Na (+) + PO4 (-3) = 3K (+) + PO4 (-3) + 3Na (+) + 3Cl (-) (no reaction)

3) Al2 (SO4) 3 +3 BaCl2 = 3 BaSO4 + 2AlCl3
2Al (+3) + 3SO4 (-2) + 3Ba (+2) + 6Cl (-) = 3BaSO4 + 2Al (+3) + 6Cl (-)
3SO4 (-2) + 3Ba (+2) = 3BaSO4

4) Na2SO3 + H2SO4 = Na2SO4 + SO2 ↑ + H2O
2Na (+) + SO3 (-2) + 2H (+) + SO4 (-2) = 2Na (+) + SO4 (-2) + SO2 + H2O
SO3 (-2) + 2H (+) = SO2 + H2O

5) Na2CO3 + H2SO4 = Na2SO4 + CO2 ↑ + H2O
2Na (+) + CO3 (-2) + 2H (+) + SO4 (-2) = 2Na (+) + SO4 (-2) + CO2 + H2O
CO3 (-2) + 2H (+) = CO2 + H2O

6) 2NaOH + H2SO4 = Na2SO4 + 2H2O
2Na (+) + 2OH (-) + 2H (+) + SO4 (-2) = 2Na (+) + SO4 (-2) + 2H2O
2OH (-) + 2H (+) = 2H2O



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