Gases In The Atmosphere
Gbogbo ọrọ náà
The air you breathe is a mixture of gases with a remarkably stable composition. Nitrogen makes up about four-fifths of the atmosphere, oxygen about one-fifth, and the remaining fraction includes carbon dioxide, water vapour, and noble gases. Despite carbon dioxide being present in tiny amounts, its role in climate change makes it one of the most discussed molecules on the planet.
In this lesson you will learn the composition of dry air, explore experiments that measure the percentage of oxygen, study the combustion of elements in oxygen, examine how carbon dioxide forms from the thermal decomposition of metal carbonates, and understand why rising carbon dioxide levels contribute to climate change.
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
- Describe the combustion of elements in oxygen, including magnesium, hydrogen and sulfur
- Describe the formation of carbon dioxide from the thermal decomposition of metal carbonates
- 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
Maapụ uche
E seela isiokwu a ka ị hụ otu echiche si ejikọta.
Mepee maapụ uche na ngwa
Kaadị ncheta
Omume ncheta ngwa ngwa n'ihe a na-anwale n'isiokwu a.
Mee omume kaadị ndị a na ngwa
Akwụkwọ Ọmụmụ
Ndetu Nkuzi Zuru Ezu di na Ngwa Green Bridge
Nweta ngwa Green Bridge CBT na ekwenti gi ma o bu kompiuta maka ulo akwukwo IGCSE zuru oke: akwukwo ule ndi gara aga, usoro nyocha, eserese uche, kaadi omumu na nkuzi olu.
Nnyocha Ọmụmụ
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.
- What is the approximate percentage of nitrogen in dry air? A) 21% B) 78% C) 0.9% D) 0.04% Answer: B
- Which gas is tested for by using limewater? A) Oxygen B) Hydrogen C) Carbon dioxide D) Nitrogen Answer: C
- What is produced when magnesium burns in oxygen? A) Magnesium hydroxide B) Magnesium carbonate C) Magnesium oxide D) Magnesium chloride Answer: C
- Which of the following is a greenhouse gas? A) Nitrogen B) Oxygen C) Argon D) Carbon dioxide Answer: D
- What colour flame is seen when sulfur burns in oxygen? A) White B) Yellow C) Blue D) Red Answer: C
Rue ajuju ndi a n'ime ngwa ahu
Rue ajuju ndi a n'ime ngwa ahu
Akwụkwọ A Na-atụ Aro
Mụtakwuo ihe site na isi mmalite mepere emepe
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Akụkụ akwụkwọ
Climate and the Effects of Global Climate Change
Define global climate change
"Biology: Climate and the Effects of Global Climate Change" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/biology/pages/44-5-climate-and-the-effects-of-global-climate-change. Access for free at https://openstax.org/books/biology/pages/1-introduction
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Akụkụ akwụkwọ
Occurrence, Preparation, and Properties of Carbonates
Describe the preparation, properties, and uses of some representative metal carbonates
"Chemistry: Occurrence, Preparation, and Properties of Carbonates" 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/18-6-occurrence-preparation-and-properties-of-carbonates. Access for free at https://openstax.org/books/chemistry/pages/1-introduction
Ndị otu ndị ọzọ bipụtara ha n'okpuru ikike mepere emepe, anyị na-ekele ha dị ka ha si chọọ. Njikọ na-emepe saịtị ha.
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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