The answer is invisible I think, don't hate if I'm wrong
The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to an atom or molecule making a transition from a high energy state to a lower energy state. The photon energy of the emitted photon is equal to the energy difference between the two states. There are many possible electron transitions for each atom, and each transition has a specific energy difference. This collection of different transitions, leading to different radiated wavelengths, make up an emission spectrum. Each element's emission spectrum is unique. Therefore, spectroscopy can be used to identify elements in matter of unknown composition. Similarly, the emission spectra of molecules can be used in chemical analysis of substances.
Answer:
B
Explanation:
As you can see in these 4 examples, B- looks completely different from A, C, D! In B: The reactants and products are completely different in the Element Figures.
Okay so you need to know that 1 L = 1000mL and 1 KL = 1000L.
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First let’s convert 0.00845 KL to Litres by multiplying by 1000.
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•0.00845 KL x 1000 = 8.45 L.
(then we multiply by 1000 again)
• 8.45 L x 1000 = 8450 mL.
• 8450 mL is the answer.