Read "yields or produces". Used to separate reactants (on the left) from products (on the right). The arrow points in the direction of change (we will always point the arrow toward the RIGHT)
designates an aqueous solution; the substance is dissolved H₂O; placed after the chemical formula
skeleton chemical equation
does not indicate the relative amounts of reactants and products. (frame)
Law of Conservation of Mass
in any physical change or chemical reaction, mass is conserved. Mass can be neither created nor destroyed, simply rearranged.
balanced chemical equation
a chemical equation in which the mass is conserved; each side of the equation has the same number of atoms of each element
In a chemical formula, it represents the number of atoms or ions. and used to indicate the relative proportions of the elements.
a small whole number that appears in front of a formula in a balanced chemical equation.