<u>Answer:</u> The mass of sulfur hexafluoride is 146 u.
<u>Explanation:</u>
Mass of a mole of a substance is defined as the molar mass of that substance.
It is defined as the sum of every component each multiplied by the times they appear in that substance.
We are given:
Mass of sulfur atom = 32.0 u
Mass of fluorine atom = 19.0 u
The chemical formula for sulfur hexafluoride is 
So, the molar mass of 
Hence, the mass of sulfur hexafluoride is 146 u.
Answer:
option (c)
Explanation:
90% of the body is submerged in water.
Now it is immersed in an unknown liquid whose density is less than the density of water.
Buoyant force acting on the body depends on the volume immersed, density of liquid and gravity.
As the density of liquid is less than the density of water, so the buoyant force acting on the body by the unknown liquid is less than water. So it is submerged less than 90% in this liquid.
Answer:
The answer is %pearlite = 0.06%
Explanation:
according to the exercise we have that the percentage is 1.88% C, therefore, the percentage of perlite is equal to:
%pearlite = (B*C)/(A*C) = (2-1.88)/(2-0) = 0.06%
The percentage of cementite is equal to:
%cementite = (1.88-0)/(2-0) = 0.94%
-release of first light
-nucleosynthesis
-formation of stars and galaxies
<span>-formation of elementary particles</span>
