B. Should a high or low pressure be used?
c. Should the HCl gas be allowed to escape into another container?
3. Elemental bromine is a reddish-brown liquid. Hydrocarbon compounds that contain bromine are
colorless. A qualitative test for carbon-carbon multiple bonds is the addition of a few drops of
bromine solution to a hydrocarbon sample at room temperature and in the absence of sunlight. The
bromine will either quickly lose its color or remain reddish brown.
a. If the sample is unsaturated, what type of reaction should occur
when the bromine is added under the conditions mentioned above?
b. If the sample is saturated, what type of reaction should occur when
the bromine is added under the conditions mentioned above?
c. The reddish brown color of a bromine solution added to a
hydrocarbon sample at room temperature and in the absence of
unugnt quickly disappears. Is the sample a saturated or unsaturated
hydrocarbon?

Calculate the change in entropy if br2(l) is converted to br2(g). s° for br2(l) = 152.2 j/(mol•k) s° for br2(g) = 245.5 j/(mol•k) s° for br(g) = 175.0 j/(mol•k)

Dying the folding patterns of protein molecules can microbiologists better understand cellular processes as well as some diseases, such as alzheimer’s, that are caused by proteins that have misfolded. the folding of these complicated molecules can be simulated on computers, but it takes a lot of processor power and time for even expensive supercomputers to do this. a group of researchers at stanford university developed software that can be used to distribute the processing of data to anyone who is willing to donate time on their idle personal computers. as a result, the researchers have been able to achieve protein-folding simulations that are far better than those other computing methods have done. which statement best describes the work of these researchers? the work is not scientific because the data are not processed in one location. the work is not scientific because the simulations are not reproducible. the researchers applied creativity to solve a problem in running an experiment. the researchers used only well-established scientific techniques.

An experimental procedure requires a 10 ml of acid to be dissolved