Hello there,
<em><u>Option B</u></em>. "A scientific law describes what always happens under specific conditions in nature." is the correct answer.
✍️ <em>By </em><em>Benjemin</em><em> </em>
<u>158 pm</u> is the distance Between equatorial Fluorine atoms in PF₅<u>(</u>Phosphorus pentafluoride).
<h3>What is
Fluorine?</h3>
The chemical element fluorine has an atomic number of 9 and the symbol F. The lightest halogen, it is an extremely poisonous, pale yellow diatomic gas under normal conditions. It is exceedingly reactive and, as the most electronegative element, reacts with all other elements with the exception of argon, neon, and helium.
Fluorine is the 24th most abundant element overall and the 13th most abundant on Earth. In order to decrease the melting temperatures of metal ores for smelting, fluorite, the main mineral source of fluorine, was added. The Latin verb fluo, which means "flow," gave the mineral its name. Fluorite was first described in 1529.
Learn more about fluorine
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How to figure out the normality/equivalent weight/equivalents of chemicals in a balanced equation? (assuming necessary data given)
Answer: First we have to understand that the normality of a solution is the gram equivalent weight of a solute per liter of solution. To find it we simply will have to have the necessary data to see the balanced equation.
I hope it helps, Regards.
Answer:
![v_{solute}=25mL](https://tex.z-dn.net/?f=v_%7Bsolute%7D%3D25mL)
Explanation:
Hello there!
In this case, according to the by-volume concentration of this solution, it is possible for us to use its mathematical definition as shown below:
![\%v=\frac{v_{solute}}{v_{solution}}*100\%](https://tex.z-dn.net/?f=%5C%25v%3D%5Cfrac%7Bv_%7Bsolute%7D%7D%7Bv_%7Bsolution%7D%7D%2A100%5C%25)
Thus, given the percent and the volume of the solution, we can solve for the volume of ethanol (solute) as shown below:
![v_{solute}=\frac{\%v*v_{solution}}{100\% }\\\\v_{solute}=\frac{5.00\%*500mL}{100\%}\\\\ v_{solute}=25mL](https://tex.z-dn.net/?f=v_%7Bsolute%7D%3D%5Cfrac%7B%5C%25v%2Av_%7Bsolution%7D%7D%7B100%5C%25%20%7D%5C%5C%5C%5Cv_%7Bsolute%7D%3D%5Cfrac%7B5.00%5C%25%2A500mL%7D%7B100%5C%25%7D%5C%5C%5C%5C%20v_%7Bsolute%7D%3D25mL)
Best regards!