Answer:
a common industrial use for a mineral is:
Explanation:
Typical examples of industrial rocks and minerals are limestone, clays, sand, gravel, diatomite, kaolin, bentonite, silica, barite, gypsum, and talc.
Lanthamides, actinides, noble gases
Answer:
44.4g
Explanation:
First we must find the moles of argon.
To do this, divide the number of atoms by Avogadro's number (6.022 ×10^23)
n= (6.7 × 10^23)/(6.022 × 10^23)
n=1.11258718034
Now to find mass, we complete the calculation
m= n × MM
where
m is mass
n is moles
MM is molecular mass
m= 1.11258718034 × 39.948
m= 44.4456326802
m= 44.4g
I believe that the best answer among the choices provided by the question is
<span>D.[HI] in experiment A equals 1/2[I2] in experiment B.</span>
Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.
Answer: There are 
atoms in 24 moles of Fe.
Explanation:
According to the mole concept, 1 mole of a substance contains 
atoms.
Therefore, atoms present in 24 moles of Fe are calculated as follows.
Thus, we can conclude that there are atoms in 24 moles of Fe.
