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2. Hydrochloric acid - Wikipedia

   en.wikipedia.org/wiki/Hydrochloric_acid

   Hydrochloric acid is used for a large number of small-scale applications, such as leather processing, household cleaning, [35] and building construction. [7] Oil production may be stimulated by injecting hydrochloric acid into the rock formation of an oil well , dissolving a portion of the rock, and creating a large-pore structure.

3. Halogen - Wikipedia

   en.wikipedia.org/wiki/Halogen

   Density (g/cm 3 at 25 °C) Electronegativity ... [35.446; 35.457] [n 3] 171.6: −101.5: ... Hydrochloric acid is the acid of chlorine, while relatively nontoxic, it ...

4. Baumé scale - Wikipedia

   en.wikipedia.org/wiki/Baumé_scale

   Baumé degrees (light) was calibrated with 0 °Bé (light) being the density of 10% NaCl in water by mass and 10 °Bé (light) set to the density of water. Consider, at near room temperature: +100 °Bé (specific gravity, 3.325) would be among the densest fluids known (except some liquid metals), such as diiodomethane .

5. Perchloric acid - Wikipedia

   en.wikipedia.org/wiki/Perchloric_acid

   Density: 1.768 g/cm 3: ... nitric acid and hydrochloric acid. ... consisting of over 1000 litres of 75% perchloric acid and 35% acetic anhydride by volume which was ...

6. pH - Wikipedia

   en.wikipedia.org/wiki/PH

   Pure water has a pH of 7 at 25°C, meaning it is neutral. When an acid is dissolved in water, the pH will be less than 7, while a base, or alkali, will have a pH greater than 7. A strong acid, such as hydrochloric acid, at concentration 1 mol dm −3 has a pH of 0, while a strong alkali like sodium hydroxide, at the same concentration, has a pH ...

7. Acid strength - Wikipedia

   en.wikipedia.org/wiki/Acid_strength

   Acid strength is the tendency of an acid, symbolised by the chemical formula, to dissociate into a proton, +, and an anion, .The dissociation or ionization of a strong acid in solution is effectively complete, except in its most concentrated solutions.

8. The EU and a South American trade bloc reach a giant trade ...

   www.aol.com/eu-south-american-trade-bloc...

   The European Union reached a blockbuster free trade agreement Friday with Brazil, Argentina and the three other South American nations in the Mercosur trade alliance, capping a quarter-century of ...

9. Sodium hydroxide - Wikipedia

   en.wikipedia.org/wiki/Sodium_hydroxide

   It melts congruously at 7.55 °C into a liquid with 35.7% NaOH and density 1.392 g/cm 3, ... Sodium hydroxide is used with hydrochloric acid to balance pH. The ...