Choose the reactant and complete the equation: ___ +H2O=2KOH
A
K2O
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B
KO2
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C
KO
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D
K3O
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Solution
The correct option is AK2O Potassium oxide dissolves in water to produce metallic hydroxides which are also known as alkalis. Alkalis are bases which dissolve in water. K2O+H2O=2KOH