The 5 branches are organic, inorganic, biochemistry, analytical, and physical. There are different branches because they each apply to different parts of chemistry. For example organic chemistry is the study of carbon compounds and inorganic chemistry is the study of non carbon compounds. You can't just have one type of chemistry because these are very different.
Answer:
There are
Explanation:
In this problem, we need to find the number of molecules in
mol of
.
The molar mass of
is ![6\times 12+1\times 6=78\ g/mol](https://tex.z-dn.net/?f=6%5Ctimes%2012%2B1%5Ctimes%206%3D78%5C%20g%2Fmol)
No of moles = mass/molar mass
We can find mass from above formula.
![m=n\times M\\\\m=8.437\times 10^{-2}\ mol\times 78\ g/mol\\\\m=6.58\ g](https://tex.z-dn.net/?f=m%3Dn%5Ctimes%20M%5C%5C%5C%5Cm%3D8.437%5Ctimes%2010%5E%7B-2%7D%5C%20mol%5Ctimes%2078%5C%20g%2Fmol%5C%5C%5C%5Cm%3D6.58%5C%20g)
Also,
No of moles = no of molecules/Avogadro number
![N=n\times N_A\\\\N=8.437\times 10^{-2}\times 6.023\times 10^{23}\\\\N=5.08\times 10^{22}\ \text{molecules}](https://tex.z-dn.net/?f=N%3Dn%5Ctimes%20N_A%5C%5C%5C%5CN%3D8.437%5Ctimes%2010%5E%7B-2%7D%5Ctimes%206.023%5Ctimes%2010%5E%7B23%7D%5C%5C%5C%5CN%3D5.08%5Ctimes%2010%5E%7B22%7D%5C%20%5Ctext%7Bmolecules%7D)
Hence, there are
A. Sedimentary rock. This is because sedimentary rock contains sediments and sometimes some fossils.
Answer:
J
Explanation:
Chlorine Gas is Cl2 so if it isnt on the left as that its wrong.
Then on the products see that Fe III means Fe is +3 charge so we have to have 3 Cl to balance it to 0 since each cl as -1 charge.
FInally check if the equation is balanced J is maybe H but its to blurry to tell