How does the emission spectra explain the idea that electrons are in orbitals around the nucleus?

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat

If oil spills continue, all of the following should be expected except (2 points) death of aquatic life. polluted groundwater. decreased soil productivity. increased global temperatures.

Silver reacts with oxygen to produce silver oxide. (write balanced chemical equation and identify type of chemical reaction.)