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klasskru [66]
3 years ago
7

Which tool is used to detect yellow light rays emitted by stars from outer space?

Chemistry
1 answer:
elixir [45]3 years ago
3 0
Answer A

x-ray optical telescope.

hope this helps!.

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svet-max [94.6K]

Answer:

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2 years ago
A cough syrup contains 5.0% ethyl alcohol, c2h5oh, by mass. if the density of the solution is 0.9928 g/ml, determine the molarit
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To answer the question above, let us a basis of the 1000 mL or 1 L. 
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Then, determine the number of moles of ethyl alcohol by dividing the mass of alcohol by the molar mass (46 g/mol). 
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3 years ago
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Keith_Richards [23]
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