Tyrone analyzes the emission spectrum of an unknown element he observes two discrete lines at 600 nm and 650 nm,
and he sees many lines corresponding to shorter wavelengths, with the strongest line being at 475 nm.
which emission spectrum is tyrone most likely analyzing?

What overall charge must all compounds have

An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g

The reactions of photosynthesis occur in the of plant cell? a.mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll