Which of the substances does potassium hydroxide interact with? Write the equations of the corresponding

| February 21, 2021 | education

Which of the substances does potassium hydroxide interact with? Write the equations of the corresponding reactions in molecular and ionic forms. 1) copper sulfate (2) 2) barium nitrate 3) phosphoric acid 4) calcium oxide 5) carbon monoxide (4)

1.2KOH + CuSO4 = Cu (OH) 2 ↓ + K2So4.
Complete ionic reaction equation:
2K + + 2OH- + Cu + + SO4- = Cu (OH) 2 ↓ + 2K + + SO4-.
Now we write down the abbreviated ionic reaction equation:
Cu + + 2OH- = Cu (OH) 2 ↓.

2. Ba (NO3) + KOH = no reaction.

3. H3PO4 + 3KOH = K3Po4 + 3H2O.
3H + + PO4 3- + 3K + + 3OH- = 3K + + Po4 3- + 3H2O.
3H + + 3OH- = 3H2O.

4.CaO + 2KOH = Ca (OH) 2 ↓ + K2O.
Ca + + O- + 2K + + 2OH- = Ca (OH) 2 ↓ + 2K + + O-.
Ca + + 2OH- = Ca (OH) 2 ↓.

5.2KOH + CO2 = K2CO3 + H2O.
2K + + 2OH- + CO2 = 2K + + Co3 2- + H2O.
2OH- + CO2 = CO3 2- + H2O.



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