Compound A (C9H12) absorbed 3 equivalents of H2 on catalytic reduction over a palladium catalyst to give hydrocarbon B (C9H18). Upon ozonolysis, compound A gave, among other things, a ketone that was identified as cyclohexanone. Upon treatment with an NaNH2 in liquid NH3 followed by addition of iodomethane, compound A gave a new hydrocarbon C (C10H14). What is the structure of starting Compound A

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.

Identify the missing numbers below to show the result of multiplying the numbers (1.6 × 10-19)(5.0 × 106) = c × 10d

Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves