8. Use the data below to ID the unknown #1. What are the X of the spectra lines? Calculate the frequency and energy of the lowest and highest (assume a photon of this light). 1 Na H Ca Hg 400 nm 500 nm 6001 nm 700 nm

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

Which position represents spring in the southern hemisphere? a) b) c) d)

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?