what is acid ? explain with example .
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The Southern Hemisphere is the half of Earth that is south of the Equator. It contains all or parts of five continents, four oceans, New Zealand and most of the Pacific Islands in Oceania.
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An acid is a chemical species that donates protons or hydrogen ions and/or accepts electrons. Most acids contain a hydrogen atom bonded that can release (dissociate) to yield a cation and an anion in water. The higher the concentration of hydrogen ions produced by an acid, the higher its acidity and the lower the pH of the solution.
Example : HCl, H2SO4, HF, HI, HNO3, H2CO3 etc.
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