Gases In The Atmosphere
Gbogbo ọrọ náà
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.
Ebumnobi
- 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
Akọmọ Ojú-ẹkọ
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ayẹwo Ẹkọ
Ekele diri gi maka imecha ihe karịrị na Gases In The Atmosphere. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- 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
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Àwọn Ìwé Tó Dáa Láti Kà
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Gases In The Atmosphere? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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