Page 4 9/12/24-9/13/24 - End mixture is clear. - End mixture is 29 o C. Experiment - It cooled by 3 0 C. Experiment F - Water is clear, sodium polyacrylate is white. - The mixture is a solid, opaque substance that sticks to the beaker. - The sodium polyacrylate absorbed all of the water. - It is a jelly like substance hat looks like ice. Conclusion: The purpose of the lab was to identify physical and chemical changes through different experiments. We achieved this purpose by performing 6 different experiments and determining weather or not it was physical or chemical. Experiment A was a physical change because mixing water and copper sulfate gave a blue liquid, boiling away that water left a white powder, and adding water back turned it blue again. Experiment B was a chemical change because adding a magnesium strip to HCI caused it to dissolve the strip and had an exothermic reaction. Experiment C was a chemical reaction because mixing water, Epsom salts and ammonia created a