Question

What is the word and balanced chemical equation for the reaction when potassium burns in a gas jar of chlorine?

A) Word: Combustion, Equation: 2K + Cl₂ → 2KCl
B) Word: Synthesis, Equation: K + Cl₂ → KCl
C) Word: Displacement, Equation: 2KCl + Cl₂ → 2KCl₂
D) Word: Decomposition, Equation: 2KCl₂ → 2K + Cl₂

Answer 1

Potassium reacts with chlorine in a synthesis reaction to form potassium chloride, with the balanced chemical equation being 2K + Cl₂ → 2KCl.

Step-by-step explanation:

The word equation for the reaction when potassium burns in a gas jar of chlorine is a synthesis reaction, and the balanced chemical equation is: 2K(s) + Cl₂(g) → 2KCl(s). This means that two potassium atoms react with one molecule of chlorine gas to form two units of potassium chloride.