People's Education Press High School Chemistry Compulsory Course I
Cantonese Education Edition Ninth Grade Chemistry Volume 1
Beijing Curriculum Reform Edition Ninth Grade Chemistry Volume 2
People's Education Press Ninth Grade Chemistry Volume 1
Lu Ke Edition High School Chemistry Compulsory Course 1
Beijing Curriculum Reform Edition Ninth Grade Chemistry Volume 1
Lu Jiao Edition Ninth Grade Chemistry Volume 1
Hunan Education Edition Ninth Grade Chemistry Volume 1
Cantonese Education Edition Ninth Grade Chemistry Volume 2
People's Education Press Ninth Grade Chemistry Volume 2
People's Education Press High School Chemistry Compulsory Course 2
Lu Ke Edition High School Chemistry Compulsory Course 2
Hunan Education Edition Ninth Grade Chemistry Volume 2
Lu Jiao Edition Ninth Grade Chemistry Volume 2
Category | Format | Size |
---|---|---|
Lu Jiao Edition Ninth Grade Chemistry Volume 2 | pptx | 6 MB |
Description
"Common Metal Materials" Chemistry in Seawater PPT, 23 pages in total.
learning target
1. Understand the physical properties of common metals and understand the important role of metal materials in daily life and agricultural production;
2. Know the definition of alloy, and based on this, initially establish the chemical concept that "mixing" can change the properties of substances;
3. Understand the important iron ore and the basic principles of industrial iron and aluminum smelting.
1. Physical properties of metals
Chemistry around us - metal products
The properties of matter determine the uses of materials to a large extent. Based on the picture below, can you tell the uses of metals?
Summary of physical properties of metals:
1. Has a metallic luster; most metals are silver-white (copper is purple-red, gold is yellow);
2. At normal temperatures, most metals are solid (mercury is liquid);
3. Most metals are good conductors of electricity and heat;
4. Has good ductility;
5. Most metals are denser and have higher melting points.
2. Alloy
Alloy: A substance with metallic characteristics formed by heating and fusing certain metals or non-metals into metals.
For example:
Pig iron mainly contains: iron, carbon, carbon content 2%-4.3%
Steel mainly contains: iron, carbon, carbon content 0.03%-2%
Activity world:
(1) Compare the gloss and color of brass sheets and copper sheets, duralumin sheets and aluminum sheets; score them against each other and compare their hardness
(2) Experiment: Place the tin sheet and solder on the iron sheet, heat the center part of the iron sheet, and observe how easy it is to melt.
Experimental phenomenon: solder melts first
Conclusion: The melting points of alloys are generally lower than the melting points of the pure metals of which they are composed.
Knowledge training
1. The metal material used to make wires is generally ( )
A.Iron B.Copper C.Silver D.Magnesium
2. Two substances in each of the following groups are mixtures ( )
A.Steel, stainless steel B.Copper, bronze
C.Iron, pig iron D.Tin, solder
3. Which of the following statements about alloys is correct ( )
A.The alloy lacks metallic luster
B. There are only more than 90 types of alloys
C. Alloys are compounds
D. Many properties of alloys are superior to those of pure metals
Keywords: free download of PPT courseware for the ninth grade of the May 4th Lujiao version of chemistry, common metal materials PPT download, chemistry in seawater PPT download, .PPT format;
For more information about the "Chemistry of Seawater Common Metal Materials" PPT courseware, please click the Chemistry of Seawater PPT Common Metal Materials PPT tab.
"Common Metal Materials" Metal PPT Courseware (Lesson 2):
"Common Metal Materials" Metal PPT Courseware (Lesson 2), 36 pages in total. New Knowledge Learning Knowledge Point 1 The Distribution of Metal Minerals in Nature Metal resources on the earth are widely found in the earth’s crust and vast oceans, among which a few very inactive metals (such as _______..
"Common Metal Materials" Metal PPT Courseware (Lesson 1):
"Common Metal Materials" Metal PPT Courseware (Lesson 1), 28 pages in total. New Knowledge Learning Knowledge Point 1 Physical Properties of Metals 1. Physical Properties of Metals 2. Application Exploration Point 1 Physical Properties of Metals [Question Exploration]What physical properties of copper are reflected in the above copper products...
"Common Metal Materials" Metal PPT:
"Common Metal Materials" Metal PPT, 29 pages in total. Introducing a new lesson The Bronze Age and Iron Age, which followed the Stone Age, were both marked by the widespread application of metal materials. In modern times, a wide variety of metal materials have become an important material basis for social development...
File Info
Update Time: 2024-10-20
This template belongs to Chemistry courseware Lu Jiao Edition Ninth Grade Chemistry Volume 2 industry PPT template
"Common Metal Materials" Chemistry in Seawater PPT Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
Tips: If you open the template and feel that it is not suitable for all your needs, you can search for related content "Common Metal Materials" Chemistry in Seawater PPT is enough.
How to use the Windows system template
Directly decompress the file and use it with office or wps
How to use the Mac system template
Directly decompress the file and use it Office or wps can be used
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view: Click to see
How to create a high-quality technological sense PPT? 4 ways to share the bottom of the box
Notice
Do not download in WeChat, Zhihu, QQ, built-in browsers, please use mobile browsers to download! If you are a mobile phone user, please download it on your computer!
1. The manuscript PPT is only for study and reference, please delete it 24 hours after downloading.
2. If the resource involves your legitimate rights and interests, delete it immediately.
3. Contact information: service@daogebangong.com
"Common Metal Materials" Chemistry in Seawater PPT, due to usage restrictions, it is only for personal study and reference use. For commercial use, please go to the relevant official website for authorization.
(Personal non-commercial use refers to the use of this font to complete the display of personal works, including but not limited to the design of personal papers, resumes, etc.)