Saved Bookmarks
| 1. |
What is the chemical properties of acids and bases |
|
Answer» The chemical properties of acids\xa0\tAcids change the colour of litmus from blue to red.\tThey convert the colour of Methyl Orange from Orange/Yellow to Pink.\tAcids turn the pink colour of Phenolphthalein to colourless.\tAcids can conduct\xa0electricity.\tSome Acids are highly corrosive in nature which means that they corrode or\xa0rust metals.\tAcids tend to evolve\xa0hydrogen gas\xa0whilst reacting with an active metal such as\xa0Zn,\xa0Mg, etc.\tThey produce H+ ions when mixed with water.\tAcids lose their acidity when mixed with a base.\tWhen equal amounts of acid and base are combined the process of neutralization occurs and salt and water is formed,\tThe pH value of acid is from 0-6. Learn the\xa0concept of pH value\xa0here.\tAcids are sour in taste.\tAcids react with carbonates and hydrogen carbonates to form a salt, water, and carbon dioxide gas.\tExtremely active metals such as\xa0Potassium\xa0(K), Calcium (Ca),\xa0Sodium\xa0(Na), etc tend to explode when combined with acids.In the chemical properties of bases\xa0\tThey are bitter in taste.\tBases lose their basicity when mixed with acids.\tBases react with acids to form salt and water. This process is called\xa0Neutralisation Reaction(Read).\tThey can conduct electricity.\tBases feel slippery or soapy.\tSome bases are great conductors of electricity.\tBases like sodium hydroxide, potassium hydroxide, etc are used as electrolytes.\tAlkalis are bases that produce hydroxyl ions (OH-) when mixed with water.\tStrong alkalis are highly corrosive in nature whereas other\xa0alkalis\xa0are mildly corrosive. Metal+ acids---》salt +hydrogen gas Properties?on what basis? |
|