Use this class practical with your students to deduce the formula of copper(II) oxide from its reduction by methane In this experiment, students heat copper(II) oxide in a glass tube while passing methane over it, REDUCING the copper(II) oxide to copper. If they weigh the reactants and products carefully, students can then deduce the formula of the copper oxide. This can also be used simply as an EXAMPLE of reduction. The practical is likely to take up to an hour, PERHAPS more to analyse the results. Students who have not carried out this type of reaction before may find it helpful to have the techniques DEMONSTRATED first. It is not really suitable for a class practical for students under the age of 14, but could be a useful DEMONSTRATION. Each pair or group of students will need access to two gas taps. The students will need access to matches or lighters to light their Bunsen burners. Alternatively, light a few around the room and students can light their own using a splint.Explanation:thank you