human
When the equation KClO3(s) -> KCl(s) + O2(g) is balanced, the coefficient of KClO3 is ____.
gpt
2
Explanation: In balanced chemical equations, the coefficients must be such that the number of atoms of each element is the same on both the reactant and product sides. For the equation to be balanced, the coefficient of KClO3 must be 2 to provide enough atoms to account for the products.