Chemical Change Lab Report

Everything can change from one substance to another, but the creation and the end of some things never happen .On a beautiful day on the fourth of December in 2015, the class of SNC1D5 started a lab on different kinds of molecules. The reason why we did this lab was to investigate the chemical and physical changes between different substances. Substances can change from one substance to another that have alternate physical and chemical properties by chemical reactions or with reactants or with heat. A physical change mixes up molecules but doesn’t hurt their inner structure. An example of physical change is ice turning into water due to heat because it didn’t change the substance’s material. A chemical change occurs when there’s a new arrangement

Consider the physical and chemical changes when you add hydrochloric acid to the sodium carbonate. Next, collect some hydrochloric acid (liquid, HCI) from the hydrochloric acid beaker and insert 5 to 8 drops of hydrochloric acid on the watch glass with Na2CO3. Finally, observe the changes of the substance from before and after. The second test that we were to observe were the changes of copper (II) sulphate (liquid, CuSO4) when added sodium carbonate (liquid, Na2CO3). Firstly is to add one dropper full of copper sulphate into one plastic cup. Secondly is to add one dropper full of sodium carbonate into another plastic cup, remembering to use a different dropper. After, is to observe any changes of the two solutions. Think about what would happen when you combine these two solutions together. Finally, combine the two solutions together and observe the changes from before change, during change, and after change. The third test we did was investigating the change of copper (II) sulphate (solid, CuSO4) when added water (H2O). The first step is to insert, the size of a pea, solid copper into a clean test tube. Think about what’s going to happen to the copper (II) sulphate when added water. Secondly, fill the test tube with copper (II) sulphate 2/3 full of

The changes I examined that were chemical in my experiment was when I inserted… Finally, the… The 4 important ingredients we used for testing was the sodium carbonate, white table sugar, liquid copper (II) sulphate, and solid copper (II) sulphate. The sodium carbonate was a white, hygroscopic, opaque, crystal-like structure, density of 2.53 g/cm3 and had a very fine and smooth edge. The next ingredient was the white table sugar. The white table sugar was white, small, sweet, and were a group of tiny crystal like molecules solid. The third ingredient was the liquid copper (II) sulphate. The liquid copper (II) sulphate was a blueish, transparent, inorganic, air sensitive, clear, solution and harmful liquid. The final ingredient was the solid copper (II) sulphate. The solid copper (II) sulphate was a grey-white, made of irregular shapes, and dangerous solid or powder that was a sulfate salt of copper. Furthermore, an easier way to classify if something changed due to a physical change or a chemical change is to make a flowchart. First question you should ask yourself, “Was there a change in