The following substances are given: magnesium oxide, potassium chloride, iron, lead (II) nitrate

| May 6, 2021 | education

The following substances are given: magnesium oxide, potassium chloride, iron, lead (II) nitrate, copper (II) sulfate, sulfuric acid, iron (III) hydroxide, carbon monoxide (IV). Which of them does potassium hydroxide react with? Write down the reaction equations.

MgO + KOH = Mg (OH) 2 + K2O.
KCl + KOH – the reaction will not take place, because the conditions for the passage of the reaction are: gas formation, precipitation, formation of a non-dissociating substance. In this reaction, none of the above is formed.
Fe + KOH – the reaction will not take place, because iron, as a less active metal, will not displace potassium from the compound.
Pb (NO3) 2 + KOH = KNO3 + Pb (OH) 2
CuSO4 + KOH = Cu (OH) 2 + H2SO4
H2SO4 + KOH = K2SO4 + H2O
Fe (OH) 3 + KOH – the reaction will not take place, because the conditions for the passage of the reaction are: gas formation, precipitation, formation of a non-dissociating substance. In this reaction, none of the above is formed.
KOH + CO2 = K2CO3 + H2O



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