Oxides
Akopọ
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.
Awọn Afojusun
- 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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Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Oxides. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- 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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Ẹ̀kọ́ síwájú láti àwọn orísun ṣíṣí
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Abala ìwé ẹ̀kọ́
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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Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Oxides? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
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