Yahoo Αναζήτηση Διαδυκτίου

Αποτελέσματα Αναζήτησης

  1. 30 Νοε 2021 · Speciation diagrams are useful in determining the effects of conditions on the distribution of species. For example in the sulfate/water system it is useful to know the available sulfate ion concentration as a function of pH.

  2. Salts are ionic compounds composed of cations and anions, either of which may be capable of undergoing an acid or base ionization reaction with water. Aqueous salt solutions, therefore, may be acidic, basic, or neutral, depending on the relative acid-base strengths of the salt's constituent ions.

  3. 24 Οκτ 2024 · Make sure the total number of electrons is the same on each side of the arrow. The carbon on the left has 3 bonds, so it has 6 electrons around it. 2 electrons from the lone pair on the bromide ion enter the scene, so there will be 8 electrons around the same carbon atom after the reaction.

  4. 29 Αυγ 2023 · Most sulfates, including those of \(\ce{Na^{+}}\), \(\ce{K^{+}}\), and \(\ce{NH4^{+}}\), are soluble in water. Exceptions that are insoluble are white lead(II) sulfate and white barium sulfate: \[\ce{BaSO4(s) <=> Ba2+(aq) + SO42-(aq)} \nonumber \]

  5. 16 Ιουλ 2023 · A typical precipitation reaction occurs when an aqueous solution of barium chloride is mixed with one containing sodium sulfate. The equation \[\ce{Ba^{2+}(aq) + Na2SO4(aq) -> BaSO4(s) + 2NaCl(aq)}\label{1} \] can be written to describe what happens, and such an equation is useful in making chemical calculations.

  6. Interactive 3D chemistry animations of reaction mechanisms and 3D models of chemical structures for students studying University courses and advanced school chemistry hosted by University of Liverpool.

  7. 13 Μαΐ 2023 · Both reactants are aqueous and one product is solid. Because the reactants are ionic and aqueous, they dissociate and are therefore soluble. However, there are six solubility guidelines used to predict which molecules are insoluble in water. These molecules form a solid precipitate in solution.