Question

The law of conservation of mass states that in a closed system, matter cannot be created or destroyed. This means that during a chemical reaction, the atoms of the reactants are rearranged to form the products.

In atomic models of simple reactions, the number of atoms found in the reactants should be the same as the number of atoms found in the products.

Note: In the image below, one dot equals one atom.

Using the image of the reaction of methane above, fill in the blanks below.

In the reaction of methane, the reactants have
?
total atoms. The law of conservation of mass states that during a reactions atoms are
?
. Therefore, the products of this reaction will have ?
atoms.

Answer 1

Explanation:

First question mark

The reactants have 1 carbon atom, 4 hydrogen atoms, 4 oxygen atoms

Second question mark

The law of conservation of mass states that during a reactions atoms are conserved over time.

Third Question mark

1 carbon atom , 4 oxygen atoms, 4 hydrogen atoms, or in short number of atoms in the reactants equals number of atoms in the products.