Answer:
Volunteering helps the teens gain new skills necessary for the job market such as leadership, communication skills, dependability, time management, and decision making.
Explanation:
The Hidden Values of Volunteering
Learn New Skills. One fantastic thing that volunteering can offer you is a new understanding of your own abilities. ...
Test for Your Future. An added side effect of volunteering is that it gives you an opportunity to try out possible careers, majors, and opportunities. ...
Meet New People. ...
Accomplish Something Important.
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Number of moles of sodium reacted is 2 moles. 0.04598 Kg is the mass of sodium that reacted.
Mole fraction is 1 mole ratio is 1:1
Explanation:
Balanced chemical reaction:
2 Na + 2H20 ⇒ 2NaOH + H2 (gas)
atomic mass of sodium = 22.99 g/mol
from the reaction it can be seen that 2 moles of sodium reacted to form 2 moles of sodium hydroxide soluition.
The mass of sodium reacted can be calculated from the formula:
mass = atomic mass of one mole x number of moles
mass = 22.99 x 2
= 45.98 grams is the mass of sodium, to convert it into kilograms it is divided by 1000
= 0.04598 Kg is the mass of sodium that reacted.
Mole fraction formula is:
= mole fraction ( solute Na = 2 moles, solution is NaOH =2 moles)
putting the values:
= 1 mole ratio is 1:1
Answer:
A chemical element exhibiting the symbol F and atomic number 9 is fluorine. It prevails as an extremely toxic pale yellow diatomic gas at normal circumstances and is the lightest halogen. It is exceptionally reactive as it reacts with all the other elements except for helium, argon, and neon, and is the most electronegative element.
Fluorine like halogens produces an anion with a charge of -1 to acquire stability. The symbol for this ion is F-, and the name given to the ion is fluoride ion. The atomic number of fluorine is 9, therefore, the number of electrons in this anion is 9+1 = 10.
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