Making acids and alkalis S2 Chemistry Classifying chemicals and chemical reactions

Learning outcomesSuccess criteria Know the effects of metal oxides and non-metal oxides on the pH of water. Given the name of an oxide, you can state what effect it will have on the pH of water. Explain why some oxides have no effect on the pH of water.

Name of compound Formula Colour of solution with Universal indicator pH Acidic, alkaline or neutral? Carbon dioxide Nitrogen dioxide Potassium oxide Copper(II) oxide Magnesium oxide Sulphur dioxide Iron(III) oxide Calcium oxide Aluminium oxide Investigating oxides

Name of compound Formula Colour of solution with Universal indicator pH Acidic, alkaline or neutral? Carbon dioxideCO 2 Red3Acidic Nitrogen dioxideNO 2 Red1Acidic Potassium oxideK2OK2OPurple13Alkaline Copper(II) oxideCuOGreen7Neutral Magnesium oxideMgOBlue/purple9Alkaline Sulphur dioxideSO 2 Red2Acidic Iron(III) oxideFe 2 O 3 Green7Neutral Calcium oxideCaOPurple13Alkaline Aluminium oxideAl 2 O 3 Green7Neutral Investigating oxides

Learning outcomesSuccess criteria Know the effects of metal oxides and non-metal oxides on the pH of water. Given the name of an oxide, you can state what effect it will have on the pH of water. Explain why some oxides have no effect on the pH of water.

Acid Rain S2 Chemistry Classifying chemicals and chemical reactions

Learning outcomesSuccess criteria Understand what acid rain is.Explain why rain water is naturally acidic. Define the term “acid rain”. Know names of chemicals which can cause acid rain. Name two chemicals which can cause acid rain. Understand how chemicals which cause acid rain are produced. Describe how sulphur dioxide which causes acid rain is produced. Describe how nitrogen dioxide which causes acid rain is produced. Understand why acid rain is bad for the environment. Describe two harmful effects of acid rain on the environment.