A student believes that a sample of solid CaCl2 may be contaminated with KNO3(3). Knowing that pure CaCl (s) contains 64% chlorine by mass, the student performs an experiment to determine the mass
percent of chlorine in the sample of CaCl2 (3)
Which of the following results for the mass percent would best support the student's claim that the
sample of CaCl (s) is contaminated with KNO3(s)?​

What does the process of natural selection involve

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Tell me the iupac names of the following alcohols: