Presentation on theme: "Starter Potassium and oxygen Sodium and chlorine Magnesium and oxygen"— Presentation transcript:
1 Starter Potassium and oxygen Sodium and chlorine Magnesium and oxygen Name the compounds containing these elements:Potassium and oxygenSodium and chlorineMagnesium and oxygenCopper and fluorinePotassium, oxygen and hydrogenPotassium oxideSodium chlorideMagnesium oxideCopper fluoridePotassium oxidePotassium hydroxideSodium chlorideMagnesium oxideNo reactionPotassium hydroxide
2 Magnesium and oxygenNo atoms are created or destroyed in a chemical reaction.There should be the same number of atoms of each type of element each side of the equation.Magnesium + Oxygen Magnesium oxideAllow students to burn magnesium ribbon in air, then demonstrate Mg in a gas jar of oxygen.
3 Other reactions Sodium + Hydrogen 1. Sodium + Water hydroxide 2. Carbon + oxygen 3. Hydrochloric + Sodium acid carbonate4. Calcium carbonateSodium HydrogenhydroxideCarbon dioxideSodium + Carbon + Waterchloride dioxideThese reactions could be completed as a circus with students writing the completed word equation and the noting their observations.Iron + oxygen iron oxideSodium hydroxide + hydrochloric acid water + sodium chlorideCalcium + water calcium hydroxide + hydrogenZinc + hydrochloric acid zinc chloride + hydrogenPotassium hydroxide + sulfuric acid potassium sulfate + hydrogenAs an extension pupils could be asked to classify the reactions.Carbon + Calciumdioxide oxide
4 Use space filler diagrams to represent atoms in a reaction
5 What happens during a chemical reaction? Hydrogen + Iodine Hydrogen iodide+Bonds are broken between reactantBonds are formed to create products
6 Element Key Hydrogen (H) Carbon (C) Sulphur (S) Oxygen (O) Nitrogen (N) Chlorine (Cl)Nitrogen (N2) Hydrochloric acid (HCl)
7 Element Key Hydrogen (H) Carbon (C) Sulphur (S) Oxygen (O) Nitrogen (N) Chlorine (Cl)Water (H2O) Hydrogen (H2) Ammonia (NH3)