Carl S. WeisbeckerHarvard UniversityJoel F. LiebmanUniversity of MarylandKluwer Academic Publishers-Plenum PublishersStructural ChemistryWeisbecker, CS, Liebman, JF (1996) Struct Chem 7: pp. 85Weisbecker CS, Liebman JF (1996) Struct Chem 7:85...
How many covalent bonds does the following form? A. Carbon B. Oxygen C. Hydrogen D. Chlorine How many covalent bonds and how many lone pairs are there in the Lewis structure of (CO_3)^{2-}? Given the following Lewis structure: 1. How many unshared pairs...
How many bonds does each of the following elements form? A. Chlorine B. Potassium C. Phosphate D. Calcium how does the number of electrons in an atom determine what kind of bond it can form? If there are 5 electrons in the outer shell of an atom, ...
Some of the latest controversy about water's properties lies in how ice behaves when it melts. Some scientists claim that it looks about the same as it does when it's solid, except that some of its hydrogen bonds are broken. Others claim that it forms an entirely new structure. So for ...
How Chlorine Bleach Makes Stains 'Disappear' Many stains have a network of double bonds between carbon atoms, and this network absorbs light. Chlorine bleach solutions can oxidize many of these bonds, breaking them and taking away the substance's ability to absorb light. ...
Although chlorine's value has been known for nearly a century, the mechanism by which the compound kills or inactivates microorganisms is not clearly understood. The bulk of chlorine disinfection research, conducted from the 1940s to the 1970s, focused on bacteria. Though limited, this work gave...
Things to avoid: Fabric softener and dryer sheets: Their additives diminish waterproof/breathable performance. Chlorine bleach. Dry cleaning. Open flames or intense heat because waterproof/breathable materials can melt.
So if the chemicals in PVC may be dangerous, does that mean your vinyl siding is killing you? Home Health Hazard Image Gallery PVC contains chlorine, a hazardous chemical. But it also employs other chemicals to create the type of final product needed by manufacturers. For example, plasticizers...
Water's hydrogen bonds are also why its solid form, ice, can float on its liquid form. Ice is less dense than water because water molecules form crystalline structures at freezing (32 degrees Fahrenheit or 0 degrees Celsius) temperatures. The thermal properties of water are also linked to its...
Another explanation for its widespread use is its high chlorine content, making the material resistant to fire. What is the difference between PVC and wood? Many people want to replace wood with PVC because of the great benefits but do not understand the similarities and differences between the ...