The reactants in a chemical equation have 4 potassium atoms, 3 oxygen atoms, and 2 iron atoms. According to the law of conservation of matter, the products of this chemical equation should have:

Question

The reactants in a chemical equation have 4 potassium atoms, 3 oxygen atoms, and 2 iron atoms. According to the law of conservation of matter, the products of this chemical equation should have:

4 iron atoms, 2 potassium atoms and 3 oxygen atoms
Twice as many atoms of each element.
the same number of atoms of each element.
the same number of atoms but of different elements.

Answer 1

The products of this chemical equation should have the same number of atoms of each element. This is because the law of conservation of matter states that matter cannot be created or destroyed in a chemical reaction, only rearranged. Therefore, the total number of atoms of each element in the reactants must be the same as the total number of atoms of each element in the products.