The best way to determine the presence of halogens is by adding a silver nitrate solution to the solvent. This is because all halogens, except for fluorine, produce a precipitate with silver nitrate solution.Chlorine produces a white precipitate, bromine produces a pale cream colored precipitate and iodine produces a yellow colored precipitate.
If further testing is required, concentrated sulfuric acid may be added. The sulfuric acid will produce misty fumes with fluorine and chlorine, brown fumes with bromine and purple fumes with iodine.
hope this helped :)
alisa202
The answer to this question would be, <span>False.
Hope this helps :)</span>
CPR is short for cardiopulmonary resuscitation. It’s a life saving medical procedure which is given to someone who is in cardiac arrest. It helps to pump blood around the person's body when their heart can’t. To carry out CPR a person presses up and down on the casualty’s chest (chest compressions<span>) and gives them a series of rescue breaths to help save their life when they are in cardiac arrest. At 6 min, CPR was started with an automated chest compressor at a rate<span> of 200-240/min.
more information, https://www.ncbi.nlm.nih.gov/pubmed/19520479
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The first to observe and describe cells, by noting that the cells in a wine cork resembles the living quarters of monks or prisoners was <span>Scientist Hooke he
was once in jail and that may have been one of the reasons he made the
connection to the cells shape and called them what they are today.</span>
