Dispose of the reagents and solid waste together with household garbage. Don't worry! Aim: To make a compound of magnesium and oxygen (magnesium oxide) Materials: magnesium ribbon, sandpaper, tongs, burner. The practical activity takes around 30–45 minutes, depending on the competence of the class. - Intro into the idea that atoms have weight looking at the conservation of mass - Reenforces the ideas of what a compound and element are Use of Badger Task Experiment: Burning magnesium (observing), and Burning magnesium to observe change of weight When the magnesium metal burns it reacts with oxygen found in the air to form Magnesium Oxide. Step 3: Burning of magnesium ribbon over Bunsen burner is observed and ash is collected in watch glass or china dish. The apparatus and set up required to calculate the change on mass when magnesium burns. This experiment involves combining Magnesium with Oxygen which is a gas represented by the chemical element 8. All students plot their masses of magnesium and oxygen onto the graph. The line representing the formula MgO, a 1:1 ratio. What’s the best way to extinguish burning magnesium? Please confirm your subscription to begin receiving our newsletter. A compound is a material in which atoms of different elements are bonded to one another. The copper coin is dipped in blue coloured copper sulphate solution, the colour obtained after half an hour is (a) reddish MATERIALS REQUIRED Magnesium Ribbon, burner, tongs, watch glass, pH paper strip/red litmus paper. Also, that is the bell not the fire alarm. A magnesium fire is very difficult to put out as it can burn in nitrogen, carbon dioxide, and water. Magnesium is 24 and oxygen is 16. At this point, remove the lid and heat for another couple of minutes. The correct way has been followed by student: NCERT Class 10 Science Lab Manual Questions based on Observational Skills. It takes a lot of heat to ignite magnesium. If you pour water on a magnesium fire, it will only make the fire worse. If swallowed: Wash out mouth with water, drink some fresh water. In this experiment you will see how magnesium metal will burn easily in air. C5.3.1 recall and use the law of conservation of mass, C5.3.2 explain any observed changes in mass in non-enclosed systems during a chemical reaction and explain them using the particle model, C5.3.7 use a balanced equation to calculate masses of reactants or products, C5.3.13 suggest reasons for low yields for a given procedure, C1.3i recall and use the law of conservation of mass, C1.3j explain any observed changes in mass in non-enclosed systems during a chemical reaction and explain them using the particle model, C1.3l use a balanced equation to calculate masses of reactants or products. It is because of this extreme desire that magnesium is able to rip oxygen atoms straight off of other molecules. You will need a copy of the graph for the class. 5.3.1 Chemical measurements, conservation of mass and quantitative interpretation of chemical equations, 22.214.171.124 Mass changes when a reactant or product is a gas, 5.3.2 Use of amount of substance in relation to masses of pure substances, 126.96.36.199 Using moles to balance equations (HT only), 1.47b Explain the law of conservation of mass applied to: a non-enclosed system including a reaction in an open flask that takes in or gives out a gas, 1.48 Calculate masses of reactants and products from balanced equations, given the mass of one substance. ZIMSEC O Level Combined Science Notes: Experiment:Making magnesium oxide compound. Le Chatelier’s principle is used to predict a colour change. Keep a bowl of water nearby during the experiment. 1. The … Source(s): https://shrinkurl.im/a8cNY. For the experiment: ... Once you have a small nest dug out, the hole can be further widened by burning small amounts of magnesium turnings in it in a similar fashion to the demonstration itself. You can also try cutting off the flame’s oxygen flow. Since magnesium burns in the presence of carbon dioxide, a CO2 fire extinguisher does not put out the flame from burning magnesium; a dry-chemical fire extinguisher must be used instead. Place the pipe clay triangle over the tripod in a Star of David formation, ensuring that it is secure. Please choose a different one. This experimental set is for use only by children over 12 years. 1. Do not replace foodstuffs in original container. Substances in non-reclosable packaging should be used up (completely) during the course of one experiment, i.e. Start the burner. What should I do if the magnesium doesn’t catch fire? Procedures Magnesium in air: Bassam Z. Shakhashiri, Chemical Demonstrations: A Handbook for Teachers of Chemistry, Volume 1. 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