We had a Nomenclature WS in chemistry today converting the name to the chemical formula, simple stuff, and I'm just wondering if someone will Check some of my answers. Best answer goes to the one who gets the most right when i get my paper back. Thank you! :
1)magnesium oxide my answer: Mg20
2)calcium nitride my answer: Ca2N3
3)potassium iodide my answer: KI(capital i)
4)strontium chloride my answer: Sr2Cl
5)aluminum nitride my answer: AlN
2007-10-15 16:17:32 · 4 answers · asked by RLB 2 in Science & Mathematics ➔ Chemistry
MgO=Magnesium Oxide
Ca3N2=Calcium Nitride
KI=Potassium Iodide
SrCl2=Strontium Chloride
AlN=Aluminum Nitride
the reason your getting the wrong answers is because you are using the elements own charges as the subscripts whereas its supposed to be the charge of the other ion.. for example for Sodium Phosphide, Sodium (Na) has a 1+ charge and Phoshphate has a 3- charge so you put the number of charge for phosphate in front of sodium and vise versa giving you Na3P.
2007-10-15 16:24:39 · answer #1 · answered by mickey m 1 · 1⤊ 0⤋
1) MgO
2) Ca3N2
3) KI
4) SrCl2
5) AlN
Looks like you got 2 out of 5 right. Remember the charges of the ions - Mg is 2+, O is 2-, Ca is 2+, N is 3-, Sr is 2+, Cl is 1-. Group 1 elements (alkali metals) form 1+ ions, Group 2 (alkaline earths) form 2+, Group 15 (pnictides) are 3-, Group 16 (chalcogens) are 2-, Group 17 (halogens) are 1-.
2007-10-15 16:22:21 · answer #2 · answered by TheOnlyBeldin 7 · 0⤊ 0⤋
MgO
Ca3N2
KI
SrCl2
AlN
2007-10-15 16:23:54 · answer #3 · answered by vv 6 · 0⤊ 0⤋
i believe you are right. good luck! :)
2007-10-15 16:21:47 · answer #4 · answered by Anonymous · 0⤊ 1⤋