<span>Both the salicylic acid and the aspirin contains the carboxylic acid groups. Yes, the mixture of salicylic acid and aspirin can be separated by using the acid-based extraction. To dissolve the aspirin you need to use NaOH and it can isolate the aqueous layer.</span>
a) These telescopes must make observations above much of the water vapor in the atmosphere because water can block infrared rays.
Explanation:
Ground- based infrared telescopes are placed in a high altitudes dry climates because the telescopes must make observations above much of water vapor since they cut and block them off.
- Telescopes are devices that are used to observe very distant objects.
- An infrared telescope is sensitive to infrared rays.
- Infrared rays are part of the electromagnetic radiations.
- These rays are usually blocked off by the presence of water vapor.
- Desert areas that lacks water vapor in the atmosphere are the most desired for sighting such facilities.
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I believe the answer is gamma ray.
Nitrogen gas consists of a diatomic nitrogen atom. So, the correct answer is B.
