Gases In The Atmosphere
Bayani Gaba-gaba
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.
Manufura
- 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
Takardar Darasi
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Nazarin Darasi
Barka da kammala darasi akan Gases In The Atmosphere. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- 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
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
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Kana son yin aikin tambayoyin gwaji kan Gases In The Atmosphere? Sauke manhajar Green Bridge CBT don samun tambayoyin gwaji da cikakkun jarrabawa akan wannan batu.
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