The total mass stays the same during a chemical reaction. This is the law of conservation of mass. In both examples, the reactants and products stay in the beaker. The total mass of the beaker and ...

Heavy water, scientifically known as deuterium oxide (D₂O), is a water variant where the typical hydrogen atoms are replaced ...

Care should be taken when handling a hot flask or hot plate. The flasks will be reused, so the solution should not be disposed of. Cold bath - add ice to cold water in a large beaker or ...