In this lab you observed that each element emits a unique color of light when heated in a flame. if these light emissions were examined through a prism, you would observe that the emitted light is actually composed of different wavelengths of light that may lie in the violet region, the green region, or the red region of the visible spectrum. each element has a unique emission spectrum. look up the emission spectra for the element tested in this lab. do research on how scientists apply these emission spectra to investigate the chemical composition pf stars. for example what is the emission spectrum of the sun, and what does this spectrum reveal about the types of elements in the sun

The sun's emission spectrum contains most of the visible spectrum, and it also contains UV light and infrared radiation. The colour depends on the atom, like oxygen, which can be found in the sun, is responsible for the colours red and green.

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.