Chemical tests

this experiment, disaccharides were tested using an enzyme as part of a chemical reaction. A chemical reaction changes substances into different substances by breaking and forming chemical bonds. In a chemical reaction, there are two main parts: the reactants and the products. The reactants are the substances changed in a chemical reaction. The products are the substances created by the chemical reaction. In many cases of chemical reactions, substances called catalysts are utilized. Catalysts…

non-metal. The more reactive element takes the place of the less reactive element in the compound, the reaction will not occur otherwise. The activity series show the chemical reactivity of elements. The general…

first ignited, sparks were seen and the flame emitted a bright, white light. The flame spread across the magnesium and eventually turned it into a white, ashy substance. The combination of fire and magnesium caused a chemical change. This is evident as there were many signs of a chemical change, such as an emission of light, a color change, and an odor change. The emission of light was the bright white fire, the color change was the change from the silver magnesium to the white ashes, and the…

help determine the chemical and physical properties of the compound so we can let the people of the town know so it can be taken care of properly with or without further precautions to be taken. Another goal of this project was to devise the synthesis of the unknown compound. Experimental Design In order to determine the correct identity of our unknown compound, we first started with a couple preliminary tests, which include physical state and smell. The physical state test inquired a…

powder. The five white powders were; icing sugar, cornstarch, aspirin powder, baking soda, baking powder. To test it out they mixed each white powder including the mystery powder with four different liquids. The liquids were; water, universal indicator, vinegar, and iodine. For example, when they mix the four liquids with the powder, one of the powders should have the exact same chemical and physical reactions as the mystery powder does. If none of the powders match the…

solubility test was conducted on all compounds. Because they were all ionic, every known compound naturally dissolved in water, and conducted electricity. As the next determining factor in the process to identify the unknown substance, the compounds were tested in acetone. As seen in table 2, only one compound, Ca(NO3)2 was found to be soluble in this solvent. Because the unknown solid was insoluble in acetone, Ca(NO3)2 was then eliminated as a possible inorganic compound. The flame test did not…

acetylsalicylic acid from salicylic acid, using a chemical synthesis procedure. The synthesis involved breaking the bond with acetic anhydride, also required heat and a catalyst, phosphoric acid, in order to beak and extract the bond. The solution used water in order to purify the solution in the way of recrystallization. The product was characterized using IR spectroscopy and melting point. The pure aspirin product that was formed in this experiment which had a chemical yield of 54.3% and had…

main importance in finding the nine unknown solutions was to prevent any inaccuracies that might form when there is a chemical compound forming. This experiment was done to determine the identity of the nine unknown solutions like color (physical trait), and chemical characteristics. Of course to determine the identity of this nine unknown solutions a sequence of solubility tests…

Usually, this state results when the forward reaction proceeds at the same rate as the reverse reaction. Chemical reactions vary greatly in the speed at which they occur. Some are essentially instantaneous, while others may take a very long time to reach equilibrium. The reaction is presented by The time in the reaction when the mixture remains colourless is the clock period. This will depend upon the initial concentrations of the sodium bisulphite ions (NaHSO3) and the potassium iodate ions…

and Hydrochloric Acid Lab, we concluded that the chemical reaction that occurred was exothermic and a single displacement reaction. The experiment consisted of zinc (Zn) and hydrochloric acid (HCl) being mixed in a test tube immersed in water. First of all, bubbles were produced during the reaction. Also, a white powdery substance was produced with properties different from those of any reactant. The bubbles suggest that the reaction was a chemical reaction as bubbles indicate a formation of…