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Definition of Acid
Acid is a chemical substance that exists in nature or is produced by humans. Acid can be solid, liquid, or gas, depending on temperature and pressure conditions. Acid often has a distinctive smell, turns litmus paper from blue to red, and can activate H+ ions in solution.
1.1 Names
1.1.1 Common name: Acid (not fixed)
1.1.2 English name: Acid
1.2 Atomic mass: Depends on the type of acid
1.3 Atomic weight: Depends on the type of acid
1.3.1 Molecular structure: Includes one or more hydrogen atoms linked to non-metal atoms or atom groups
1.4 Ion structure: Typically H+ ions and ion groups of organic and inorganic acids -
Properties of Acid
2.1 Physical properties of Acid- State: Depends on the type of acid and temperature, pressure conditions
- Color: Usually colorless
- Smell: Specific depending on the type of acid
- pH level: Usually less than 7
2.2 Chemical properties of Acid: Ability to activate H+ ions and react with bases to form salts and water.
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Statistical chemical equation of Acid
- Metal reaction: Acid + Metal -> Salt + Hydrogen
- Acid reaction: Acid + Base -> Salt + Water
- Non-metal reaction: Acid + Non-metal -> Salt + Hydrogen
- Reaction with salt: Acid + Salt -> Newsalt + Acidorbase
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Acid preparation
4.1 Lab preparation of Acid: Acid can be prepared from salt, oxygen, and other acids or bases.
4.2 Industrial preparation of Acid: Usually the method of preparation from inorganic or organic substances through chemical reactions is used.