Αποτελέσματα Αναζήτησης
12 Οκτ 2017 · The document discusses the Diels-Alder reaction, which is a [4+2] cycloaddition reaction between a conjugated diene and a dienophile to form a six-membered ring. The reaction is initiated by heat and proceeds through a concerted mechanism. The reaction is stereospecific and favors the endo product.
19 Νοε 2015 · There are two main types of resins: cation exchange resins that replace calcium and magnesium ions with hydrogen ions, and anion exchange resins that replace chloride and sulfate ions with hydroxide ions. The process produces deionized water that is free from minerals and hardness ions.
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.
18 Ιουν 2015 · The ion exchange process removes hardness-causing ions from water by exchanging them for ions on cross-linked polymer resins. There are two main types of resins: cation exchange resins that replace calcium and magnesium ions with hydrogen ions, and anion exchange resins that replace chloride and sulfate ions with hydroxide ions.
Learning Objectives. By the end of this section, you will be able to: Predict whether a salt solution will be acidic, basic, or neutral. Calculate the concentrations of the various species in a salt solution. Describe the acid ionization of hydrated metal ions. Salts with Acidic Ions.
In weathering or contact with aerated water, the sulfides are oxidized to yield sulfate ions which are carried off in the water. Sulfate is carried to bodies of water by rain and through solution of sulfate compounds in sedimentary geologic formations within the drainage basin.
How does water conduct electricity? • Water conducts electricity because it contains ions. When compounds containing ions dissolve in water, the ions exist separate from each other. The mobility of ions allows for a current to pass through water. Figure 3.03 4. Compound Names and Classifications. • CH3CO2H – acetic acid, acid.
