| Category | Format | Size |
|---|---|---|
| Cantonese Education Edition Ninth Grade Chemistry Volume 1 | pptx | 6 MB |
"The Properties and Uses of Oxygen" The gas that sustains life - Oxygen PPT courseware
Description
"The Properties and Uses of Oxygen" The gas that sustains life - Oxygen PPT courseware
1. Physical properties
1. Normally, oxygen is a colorless, odorless gas
2. Density: slightly denser than air
3.Solubility: Not easily soluble in water
4. Three-state transformation: under 101kPa
Gas colorless -183℃ Liquid light blue -218℃ Solid light blue
2. Chemical properties
1. Reaction with carbon
Phenomenon:
(1) Burn violently and emit white light
(2) Release heat
(3) Generate gas that can turn clear lime water into turbidity
Literal expression:
carbon + oxygen → carbon dioxide
2. Iron burns in oxygen
Observation: Can iron wire be ignited in the air? (Think about the reason)
Phenomenon:
(1) Burn violently, with sparks shooting out
(2) Release a lot of heat
(3) Generate a black solid
Literal expression:
Iron + oxygen → ferric oxide
3. Combination reaction:
A reaction in which two or more substances produce another substance is called a chemical reaction.
General reaction formula: A + B = AB
discuss:
Is the reaction between paraffin and oxygen a chemical reaction?
Paraffin + oxygen → carbon dioxide + water
two products
Not a chemical reaction
Exercise: Which of the following reactions are chemical reactions?
(1)Chlorine + oxygen → hydrogen chloride
(2) Hydrogen + Oxygen → Water
(3) Mercury oxide → mercury + oxygen
(4)Calcium oxide + water→calcium hydroxide
(5) Hydrogen + copper oxide → water + copper
(6) Basic copper carbonate → copper oxide + water + carbon dioxide
The relationship between chemical reactions and oxidation reactions
A chemical reaction involving oxygen is also an oxidation reaction
To sum up: Oxygen is a gas with relatively active chemical properties. It provides oxygen in the oxidation reaction and has oxidizing properties. It is a commonly used oxidant.
1. The simplest way to prove that the gas collecting bottle contains oxygen is ( )
A. What makes candles burn is oxygen
B. Determine the density. If the density is greater than that of air, it is oxygen.
C. Put in wooden sticks with sparks. What can make the wooden sticks re-ignite is oxygen.
D. Add red charcoal and then add clear lime water. The bottle that can make the lime water turbid must be oxygen.
2. Which of the following reactions is a combination reaction ( ), and which one is an oxidation reaction ( )
A. Alcohol + oxygen → water + carbon dioxide
B. Zinc + hydrochloric acid → zinc chloride + hydrogen
C. Phosphorus + oxygen → phosphorus pentoxide
D. Basic copper carbonate → water + copper oxide + carbon dioxide
3. Among the following chemical reactions, the one that is a combination reaction is ( ), the one that is an oxidation reaction is ( ), and the one that is both a combination reaction and an oxidation reaction is ( )
① Hydrogen + Oxygen → Water
② Methane + oxygen → carbon dioxide + water
③ Hydrogen peroxide → water + oxygen
④ Magnesium + oxygen → magnesium oxide
⑤ Carbon dioxide + water → carbonic acid
⑥ Phosphorus + oxygen → phosphorus pentoxide
Keywords: Oxygen, the life-sustaining gas, teaching courseware, the properties and uses of oxygen, teaching courseware, Guangdong Education Edition ninth grade chemistry PPT courseware download, ninth grade chemistry slide courseware download, life-sustaining gas oxygen PPT courseware download, properties of oxygen and purpose PPT courseware download, .PPT format;
For more information about the PPT courseware "The Nature and Uses of Oxygen, the Life-Sustaining Gas Oxygen", please click the "The Nature and Uses of Oxygen, the Life-Sustaining Gas Oxygen ppt" ppt tag.
File Info
Update Time: 2024-06-26
This template belongs to Chemistry courseware Cantonese Education Edition Ninth Grade Chemistry Volume 1 industry PPT template
"The Properties and Uses of Oxygen" The gas that sustains life - Oxygen PPT courseware 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 "The Properties and Uses of Oxygen" The gas that sustains life - Oxygen PPT courseware 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
"The Properties and Uses of Oxygen" The gas that sustains life - Oxygen PPT courseware, 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.)
Preview
Related Search:
