**Flashcard. S8P1f. Conservation of Matter in Reactions

The law of conservation of mass states that in a closed system, the mass of the reactants is equal to the mass of the products in a chemical reaction.

The mass of $$KClO_3$$ is equal to the mass of $$KCl$$ and $$O_2$$ .

There are 4 hydrogen atoms in the reactants.

Atoms of the reactants recombine to form new products.

Because atoms are rearranged but not created or destroyed.

It represents the number of molecules produced.

A reactant is a substance that undergoes change during a chemical reaction.

A product is a substance that is formed as a result of a chemical reaction.

Balancing a chemical equation means ensuring that the number of atoms for each element is the same on both sides of the equation.

Coefficients indicate the number of molecules or moles of a substance involved in the reaction.