Geology belongs to the Earth Science category I believe.
Answer:

Explanation:
From the question we are told that:
Mass of zinc 
Initial conc of HCl 
Initial volume of HCl
Molar mass of zinc
Generally the equation for reaction is mathematically given by

Generally the equation for moles of zinc
is mathematically given by



Generally the equation for moles of
is mathematically given by
Generally the reacted moles of HCl
is mathematically given by
Since
Zn:HCl =1:2
Therefore
![HCl_[reacted]=0.038*\frac{2}{1}](https://tex.z-dn.net/?f=HCl_%5Breacted%5D%3D0.038%2A%5Cfrac%7B2%7D%7B1%7D)
![HCl_[reacted]=0.076mol \ HCl](https://tex.z-dn.net/?f=HCl_%5Breacted%5D%3D0.076mol%20%5C%20HCl)
Generally the moles of HCl after Zn oxidization X is mathematically given by


Generally the conc of hydrochloride acid X is mathematically given by


Therefore Conc of HCl

Answer:
The mass of the metal is 66 g
Explanation:
We use the formula:
Density =mass/ volume
11, 0 g/cm3= mass/ 6, 0 cm3
mass= 11, 0 g/cm3 x 6, 0 cm3= 66 g
Answer:
hello
Explanation:
second option is correct please follow me
Answer:
C
Explanation:
If you look at the scientific method it has nothing to do with a law, you form a hypothesis, test it, record your answers, preform a few more experiments, and come to a conclusion