Why are chemical equilibria called dynamic equilibria?
1 answer:
Answer:
Because molecules are moving so they change from reactants to products and vice versa.
Explanation:
Hello,
In this case, it is widely known that chemical equilibrium is related with such condition at which the rate of consumption of reactants and formation of products tends to zero so their concentrations remain the same over the time. For instance, if we consider the formation of hydrogen chloride at equilibrium:
We can also see that the reactants, hydrogen and chlorine are consumed to form hydrogen chloride and it also goes back to its reactants in a dynamic equilibrium (because they are constantly changing).
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Answer:
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♨ The word ' acid ' is derived from the Latin word ' acidus ' which means sour. An acid is defined as the substance which gives hydrogen ions or protons ( H+ ) when dissolved in water. For example :
- Hydrochloric acid
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- Nitric acid
- Carbonic acid
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☃ Physical properties :
- Acids have a sour taste. But some acids like steric acid, boric acid , salisylic acid do not have a sour taste. Laboratory acids are more corrosive , so they are dangerous to taste.
- Acid turn blue colour of litmus paper into red and light yellow methyl orange into red. They make phenolphthalein colourless.
☂ Chemical properties :
- Acids have a high dissolving power and dissolve many substances. Some metals like zinc and magnesium react with acids like dilute sulphuric acid and dilute hydrochloric acid to produce salt and hydrogen gas.
- Acid react with base to give salt and water.
- Acid gives H+ ions when dissolved in water.
- Acid react with metallic carbonates to produce carbon dioxide.
☼ Hope I helped! ♡
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