Graduated cylinder, meter stick
Beaker, stop watch
Graduated cylinder, triple beam balance
Beaker, triple beam balance
The products must have different physical state than the reactants.
The total mass of the reactants must equal the total mass of the products.
The reactants must contain more complex molecules than the products do.
The density of the reactants must equal the density of the products.
Pours more slowly
Evaporates more quickly
Forms a precipitate
Separating water into its elements.
Dissolving sugar in water.
Wind carried away some matter before it burned
Some matter was converted to gases that were released
Combustion changed some matter into energy
Some matter was decomposed by organisms in the soil
The difference in the products’ masses is equal to the mass of the CaCO3.
The sum of the products’ masses is less than the mass of the CaCO3.
The mass of each product is equal to the mass of the CaCO3.
The sum of the products’ masses equals the mass of the CaCO3.