Complete your required discussion prompt The fuoride rinse in dental offices usu

Question

Complete your required discussion prompt The fuoride rinse in dental offices usually contains sodium fluoride. Sodium fluoride can be prepared from the reaction between sodium metal and fluorine gas. Which properly represents the balanced chemical equation for this reaction? A Na(s) + F2(g) NaF2(s) B Na(s) + F (g) NaF(s) C. 7Na(s)+F(g) Na7F(s) D 2Na(s) + F2(g)-2Na2F(s) E 2Na(s) + F2(g) 2NaF(s) Why is it important to understand this equation? What do you think could happen if this is incorrect? Complete your required discussion prompt and Describe the electron configuration of an atom using principal energy level, sublevels, orbitals periodic table. Give one example others may not think about and why you made this selection Complete your required discussion prompt thin stream of water bends toward a negatively charged rod When a positively charged rod is placed the stream, it will bend in the same direction, not the nother example direction. Why? Can you think of Complete your required discussion prompt A concentrated phosphoric acid solution is 85 5% H3P04 by mass and has a density of 1 69 gmL at 25" C What is the molarity of H3PO4? What is the mole fraction of urea, CO(NH2)2, in a solution 5 6 g of urea in 30.1 g of methanol, CH30H? How will an understanding of this concept help you in your healthcare career? Complete your required discussion prompt: 1 Descrbs the blod hydrogen carbonate buffor system What happens when blood acidily rises? Show the equation 2 What happons when the blood becomes more alkaline? Show the equation 3 Distinguish between strong and weak acid List some clinical uses of these acids and write equations for their dissociation in water 4 Did you find any of these to be a challonge? Why or why not?

Explanation / Answer

The balanced equation for the reaction is

E. 2Na(s) + F2(g)---------> 2NaF

Na is an s block element with valency 1, and its a electropositive element I,e can give electrons to other species hence it can combines with one atom which is electronegative in nature

F is p block element which is highly electronegative and can accept an electron from an electropositive element like Na.

Hence Na+ and F- gives NaF salt an ionic compound.

But F doesn't exist as an atom it exists as a molecule as it's a gas I,e F2

Hence the reaction will be Na + F2 to give NaF salt, inorder to balance the reaction to get a stoichiometric equation Na atoms should be balanced by 2 followed by NaF balanced by 2. Hence the above equation is correct for the given reaction.

Carbon: C: 1s2 2s2 2p2

1s---> 1 represent shell as K shell, s represent the orbital

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