The mass of HCl that is contained in the solution is 147 g HCl
Why?
To find the mass of HCl we have to apply what is called a conversion factor. In a conversion factor we put the units we don't want at the bottom, and the ones we want at the top.
For this question, we want to go from liters of solution to mass of HCl, and the conversion factor is laid out as follows:

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B. compound
source is Glencoe Science book grade 7.
Also I just happening to be learning about this at school
Answer: A
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B, homeostasis. “Homeostasis is the state of steady internal, physical, and chemical conditions maintained by living systems.”