Write the balanced chemical equation for the reaction of solid potassium with liquid water.

Key Concepts

Balancing Chemical Equations

Balancing chemical equations involves ensuring that the number of atoms for each element is the same on both sides of the equation. This is based on the law of conservation of mass, which states that matter cannot be created or destroyed in a chemical reaction. To balance an equation, coefficients are adjusted in front of the chemical formulas.

Reactivity of Alkali Metals

Alkali metals, such as potassium, are highly reactive, especially with water. When they react with water, they typically produce a hydroxide and hydrogen gas. This reaction is exothermic, meaning it releases heat, and can be vigorous, sometimes resulting in flames or explosions due to the hydrogen gas produced.

Products of the Reaction

In the reaction between potassium and water, the products formed are potassium hydroxide (KOH) and hydrogen gas (H2). Potassium hydroxide is a strong base, and the release of hydrogen gas can lead to further reactions, especially if ignited. Understanding the products helps in predicting the behavior of the reactants during the reaction.