"Element of Carbon" The World of Carbon PPT Courseware

Description

"Element of Carbon" The World of Carbon PPT Courseware

Several elements of carbon

Charcoal Activated Carbon Carbon Black Coke

1. Diamond

Pure diamond is a colorless, transparent, regular octahedral-shaped solid.

After processing and polishing, it will be bright and shiny, and can be made into diamonds.

Diamond - the hardest substance in nature

Diamond is very hard and can be used to cut glass and can also be used as drill bits for drilling machines.

2. Graphite—one of the softest minerals in nature

Dark gray, metallic luster, opaque, fine flake-like solid.

Graphite is very soft

Graphite can be used as pencil lead

Charcoal and activated carbon have adsorption properties

Canister in gas mask

Odor remover in refrigerator

Decolorizing agents for the sugar industry

Carbon black: black powder, can be used to make ink.

Coke: can be used to smelt metals.

3. C60 molecule, also known as footballene

The C60 molecule is composed of 60 carbon atoms. The molecule is shaped like a football and is also known as footballene. This football-structured molecule is very stable. Research on its application in materials science, superconductors, etc. is ongoing.

summary

structure→property→use

Diamond, graphite, and C60 are all elements composed of carbon. Their physical properties are different because the carbon atoms are arranged in different ways.

【Try it】

⑴Carbon element: Carbon that exists in elemental form mainly includes graphite, diamond, and C60

⑵Diamond is the hardest substance naturally occurring.

⑶Graphite is one of the softest minerals.

⑷Diamond and graphite are both simple substances of carbon. The reason for the large difference in physical properties is the different arrangement of carbon atoms.

【Think about it】

1. In 1999, a "graphite bomb" was used. After the bomb explodes, it releases a large amount of fibrous graphite, which covers the equipment in the power plant, causing the equipment to short-circuit and cause a power outage. Explain why?

This is because graphite has good electrical conductivity, so after they are released and cover the equipment in the power plant, they will cause short circuits in the equipment and cause power outages.

2. After the discovery of C60, C70 has also been produced. Which of the following statements about C70 is correct ( )

A. It is a compound

B. It is a simple substance and it is composed of 70 carbon atoms

C. It is a mixture

D. Its relative molecular mass is 840

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For more information about the PPT courseware "The World of Carbon and the Elemental Substance of Carbon", please click on the "World of Carbon ppt" elemental substance of carbon ppt tag.

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Update Time: 2024-10-19

This template belongs to Chemistry courseware Beijing Curriculum Reform Edition Ninth Grade Chemistry Volume 1 industry PPT template

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