Students will be able to make measurements showing that whether the process is a change of state, dissolving, or a chemical reaction, the total mass of the substances does not change. Note: In the ...

The Law of Conservation of Mass dates from Antoine Lavoisier's 1789 discovery that mass is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the ...

The mass of a substance – solid, liquid or gas – is measured with a balance. This mass balance could be attached to a data logger to measure the decrease in mass against time continuously and ...

Chemical reactions are described as those that form new products. An example of burning sparklers is given. The word equation forming magnesium oxide is mentioned and the concept of conservation ...