Gases In The Atmosphere
Akopọ
The air around you is a mixture of gases, and each one plays a role in the chemistry of our planet. Knowing what the atmosphere is made of, how to measure it, and what happens when elements burn in oxygen connects laboratory chemistry to global issues like climate change.
In this lesson you will learn the composition of dry air, how to determine the percentage of oxygen experimentally, what happens when magnesium, hydrogen, and sulfur burn in oxygen, and why rising carbon dioxide levels are a cause for concern.
Awọn Afojusun
- Know the approximate percentages by volume of the four most abundant gases in dry air
- Understand how to determine the percentage by volume of oxygen in air using experiments involving the reactions of metals and non-metals with air
- Describe the combustion of elements in oxygen, including magnesium, hydrogen and sulfur
- Know that carbon dioxide is a greenhouse gas and that increasing amounts in the atmosphere may contribute to climate change
- Determine the approximate percentage by volume of oxygen in air using a metal or a non-metal
Akọ̀wé Ẹ̀kọ́
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Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Gases In The Atmosphere. 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 gas is most abundant in dry air? A) Oxygen B) Carbon dioxide C) Nitrogen D) Argon Answer: C
- The approximate percentage of oxygen in dry air is: A) 0.04% B) 0.9% C) 21% D) 78% Answer: C
- When magnesium burns in oxygen, the product is: A) Magnesium hydroxide B) Magnesium oxide C) Magnesium carbonate D) Magnesium sulfate Answer: B
- Carbon dioxide is classified as a greenhouse gas because it: A) Is produced by plants B) Absorbs infrared radiation C) Is colourless D) Is denser than air Answer: B
- In the copper experiment, the copper turns black because: A) It melts B) It reacts with nitrogen C) It forms copper(II) oxide D) Carbon is deposited on it Answer: C
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
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Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Gases In The Atmosphere? 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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