1. What happens to the
mass when a
solution is formed?

2. Conservation of mass 10 g 50 g 60 g ?
If 10 g of salt is added to 50 g of water, what is the mass of the solution?
10 g
50 g ?
60 g
How much salt will be recovered if the mixture is separated by evaporation?

3. Conservation of mass experiment

4. Conservation of mass – extension
If 10 g of salt is added to 50 g of sea water, what is the mass of the solution?
10 g
50 g ?
60 g
How much salt will be recovered if the mixture is separated by evaporation?

5. The law of conservation of mass states that, in a chemical reaction, the mass of the products always equals the mass of the reactants

6. Counting Atoms in Reactants and Products