The resource provides a structure for a lesson about conservation of mass. It includes a student investigation and worksheet and a mini-plenary quiz.
6 g of salt is dissolved in 150 ml of water. The solution is left until all the water has evaporated. How much salt would be left in the beaker?
A. 3 g B. 6 g C. 150 g D. 156 g
4. In a chemical reaction, the total mass of the reactants is 30 g. What will the total mass of the products be?
A. 15 g B. 60 g C. Not possible to tell D. 30 g