Oxides
Muhtasari
Oxygen reacts with almost every element to form an oxide, but those oxides do not all behave the same way. Some turn water acidic, others make it alkaline, and a few can do either. Sorting oxides by how they react with acids and bases reveals a neat pattern that follows the periodic table.
In this lesson you will learn to classify oxides as acidic or basic and link this to whether the element is a metal or a non-metal. You will also meet amphoteric oxides, the in-between cases that react with both acids and bases, such as those of aluminium and zinc, and understand why they sit on that boundary.
Malengo
- Classify oxides as acidic, including SO₂ and CO₂, or basic, including CuO and CaO, related to metallic and non-metallic character.
- [Supplement] Describe amphoteric oxides as oxides that react with acids and with bases to produce a salt and water.
- [Supplement] Classify Al O and ZnO as amphoteric oxides 2 3.
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Tathmini ya Somo
Hongera kwa kukamilisha somo la Oxides. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
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- Which oxide is acidic? A. CaO B. CuO C. CO2 D. Na2O Answer: C
- Which oxide is basic? A. SO2 B. CuO C. CO2 D. NO2 Answer: B
- Which oxide is amphoteric? A. CaO B. SO2 C. Al2O3 D. CO2 Answer: C
- An amphoteric oxide reacts with: A. Acids only B. Bases only C. Both acids and bases D. Neither acids nor bases Answer: C
- Acidic oxides are generally oxides of: A. Metals B. Non-metals C. Noble gases D. Transition elements Answer: B
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Vitabu Vinavyopendekezwa
Jifunze zaidi kutoka vyanzo huria
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Sehemu ya kitabu
Occurrence, Preparation, and Compounds of Oxygen
Describe the properties, preparation, and compounds of oxygen
"Chemistry: Occurrence, Preparation, and Compounds of Oxygen" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/chemistry/pages/18-9-occurrence-preparation-and-compounds-of-oxygen. Access for free at https://openstax.org/books/chemistry/pages/1-introduction
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