Answer:
Ferric chloride test
Explanation:
The ferric chloride test can be used to detect metabolites in urine in case of inborn error of metabolism such as phenylketonuria. Compounds such as phenylpyruvate increase in plasma and are excreted out via urine. Also, it can be used to detect salicylates in urine, quick diagnostic test for aspirin overdose.
If the train is moving from Point A to Point B, and this motion we arbitrarily deem "forward", then from the reference point of the train, she will be moving backward. From an external reference point, she will be moving in the same direction as the train, but with a lessened velocity.
A liquid takes 10.14 x 10^6 J of energy to boil 28.47 kg at 298 K. Using the Latent heats of vaporization of some of the substances:
Acetone: 538,900 
Ammonia: 1,371,000
Propane: 356,000
Methane: 480,600
Ethanol: 841,000
Calculating the latent heat of vaporization of the given substance:
Heat required = 
Mass of the substance boiled = 28.47 kg
Latent heat of vaporization =
So the substance boiled is propane.
Answer:it’s so they could breathe
Explanation:the water cycle
