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Posted by Pratibha Shukla 5 years, 9 months ago
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Meghna Thapar 5 years, 9 months ago
- Balancing the Chemical Equations:
- In a balanced chemical equation, the total number of atoms of each element of the reactants on the left hand side of the equation is equal to the number of atoms of the products formed on the right hand side of the equation.
- The total mass of the reactants is equal to the total mass of the products or the number of atoms of each element before the reaction and after the reaction is equal.
Posted by Sunita Mishra 5 years, 9 months ago
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Yogita Ingle 5 years, 9 months ago
Oxidation of iron is called as rusting. Rusting involves slow oxidation of iron in presence of air and moisture.
4Fe + 3O2 → 2Fe2O3
Iron Oxygen Ferric oxide
2Fe2O3 + xH2O → Fe2O3.xH2O
(moisture) Rust
Hydrated iron (III)oxide
Posted by Shreya?? The Lioness 5 years, 9 months ago
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?Sᴀʀᴋᴀʀ? ▄︻┻┳═一 ? Ꭰꭿꭰꭰꮍ ? 5 years, 9 months ago
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?Sᴀʀᴋᴀʀ? ▄︻┻┳═一 ? Ꭰꭿꭰꭰꮍ ? 5 years, 9 months ago
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?Sᴀʀᴋᴀʀ? ▄︻┻┳═一 ? Ꭰꭿꭰꭰꮍ ? 5 years, 9 months ago
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♔〘Mùhükshã〙♔ . 5 years, 9 months ago
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꧁༒☬☠Ashu??Mikku☠︎☬༒꧂ Tiwari 5 years, 9 months ago
?Sᴀʀᴋᴀʀ? ▄︻┻┳═一 ? Ꭰꭿꭰꭰꮍ ? 5 years, 9 months ago
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?Sᴀʀᴋᴀʀ? ▄︻┻┳═一 ? Ꭰꭿꭰꭰꮍ ? 5 years, 9 months ago
?Sᴀʀᴋᴀʀ? ▄︻┻┳═一 ? Ꭰꭿꭰꭰꮍ ? 5 years, 9 months ago
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♔〘Mùhükshã〙♔ . 5 years, 9 months ago
?Sᴀʀᴋᴀʀ? ▄︻┻┳═一 ? Ꭰꭿꭰꭰꮍ ? 5 years, 9 months ago
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Yogita Ingle 5 years, 9 months ago
Most of the dirt is oily in nature and oil does not dissolve in water. The molecule of soap constitutes sodium or potassium salts of long-chain carboxylic acids. In the case of soaps, the carbon chain dissolves in oil and the ionic end dissolves in water. Thus the soap molecules form structures called micelles. In micelles, one end is towards the oil droplet and the other end which is the ionic faces outside. Therefore, it forms an emulsion in water and helps in dissolving the dirt when we wash our clothes.
Soaps are sodium or potassium salts of long-chain fatty acids. Hard water contains calcium and magnesium ions. When soaps are dissolved in hard water, these ions displace sodium or potassium from their salts and form insoluble calcium or magnesium salts of fatty acids. These insoluble salts separate as scum.
This is the reason why soaps do not work in hard water.
Posted by ♔〘Mùhükshã〙♔ . 5 years, 9 months ago
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Sumit Kumar Rohan 5 years, 9 months ago
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