what happens when acid dissolves in water
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Answers:When it dissolves it breaks down into H positive molecules and OH negative molecules. What makes it an acid is that there are more H's then OH's.
Answers:More precisely, the acid ionizes to an anionic component and a proton. The proton then protonates a water molecule to form the hydronium ion. And yes, it lowers the pH.
Answers:The definition of a strong acid is one that dissociates completely in water. That is 100% of the molecules separate to form ions, and none of the acid remains a dissolved molecule. HCl, HBr, HI, HNO3, HClO4 and H2SO4 (1st H only) are the common strong acids. When 100 molecules of HCl(g) are dissolved in water, then there will be 100 H+ ions and 100 Cl- ions and no molecules of HCl When 100 molecules of HF, a weak acid, are dissolved in water, then there will be 1 H+ and 1 F- and 99 HF molecules that don't separate, assuming 1% dissociation. Actually, for HF there will be even fewer H+ and F- ions since it is much less than 1% dissociated. H2SO4 is more complicated. Sulfuric acid is a strong acid, but only for the first hydrogen that comes off. What is left, HSO4-, is a weak acid, and does not dissociate completely.