Chemistry Questions
Explore questions in the Chemistry category that you can ask Spark.E!
The fragrant smell from conifer trees such as pine and fir and the smell from citrus fruits are mostly from terpenes; they can be precursors to photochemical smog. (T or F)
CO can be a dangerous indoor air pollutant when exhaust systems on natural gas heaters malfunction. (T or F)
Particulate matter also scatters and absorbs sunlight. (T or F)
In the presence of sulfur and nitrogen oxides, photochemical oxidants can enhance the formation of certain particulate matter, which contributes to...
Diesel-powered vehicles give off more particulate matter, in the form of black smoke, than do gasoline-powered vehicles. (T or F)
Particulate matter ranges in size from ___ micrometer to ___
There are many photochemical oxidants, and they are generally harmful to plant tissue, human respiratory tissue, and construction materials. (T or F)
When trying to control secondary pollutants, it is necessary to consider the primary pollutants that create them, as well as factors that may lead to the formation, breakdown, or reduction in the secondary pollutants themselves. (T or F)
In general, the complete combustion of matter that produces carbon dioxide is more desirable than the incomplete combustion that produces carbon monoxide and other pollutants. (T or F)
CO is a particular problem in developing countries, where people may cook with manure, charcoal, or kerosene within poorly ventilated structures. (T or F)
The larger the Ka, the _____________________ the acid.
Will diluting a buffer change its pH?
if there is a diprotic base or diprotic acid, what do we do?
Increasing temperature pushes equilibrium to right, giving bigger concentration of [H+] and lower pH shows that dissociation of water is.......
the amino acid that has a sulfur-containing R group and is able to form a disulfide bridge?
the amino acid that has an aromatic R group capable of forming hydrogen bonds?
The only amino acid with a substituted alpha-amino group; influences protein folding by forcing a bend in the chain
The only amino acid having an R group with a pKa near 7, important in the active site of some enzymes, would act as a buffer at a neutral pH
Saturated hydrocarbon R group; important in hydrophobic interactions
Provides the least amount of steric hindrance in proteins