Chemical Formula Name of Compound Type of Compound?

Hi! I need to know if I'm right on this for an upcoming test this Thursday! I'm given the chemical formula and have to know the rest, would you let me know if I'm right or not on this stuff? The professor said not to use any prefixes or ite's or ate's for this test. Thanks in advance!!

NaF = I think it is Sodium Floride and it is an Ionic Compound

C3H8 = propane and is Covalent

BaCl2 = Barium diChloride and is Ionic

Ba3P2 = Barium diphosphide and is Ionic

NaO2 = Sodium Oxide and is covalent

P8I3 = Phosphorous Iodide and is Covalent

NH3 = Nitrogen Hydride and is Covalent

Na2S = Sodium Sulfide and is ionic

Now for this next set he gave us the Name of the compound and I have to figure out the chemical formula and the type of compound.

Sodium Oxide = Na02 = Covalent

Trisulfur Dioxide = S302 = Covalent

Pentane = C5H12 = Covalent

Calcium Nitride = CaN2 = Ionic

Potassium Carbide = KC = Ionic

I really get messed up on knowing how many goes at the end of a combined formula. I just hope I can figure this out before Thursday!

3 Answers

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  • 1 decade ago
    Best Answer

    BaCl2 is barium chloride. you're right when you said that this was ionic. The only time you can use the prefixes is when the compound is covalent.

    Ba3P2 is barium phosphide. it really is ionic.

    NaO2 is sodium superoxide. the superoxide ion exists as O2-. this is an ionic compound.

    P8I3 is octaphosphorus triiodide. the name is such because there are 8 phosphorus atoms. you use the prefix octa- if there are 8 atoms. there are 3 iodine atoms, so use the prefix tri-. the formula is covalent.

    NH3 is ammonia.

    you got the last number right.

    for the next set....

    the formula for sodium oxide is wrong. it should be Na2O. Recall that sodium has a +1 charge and oxide has a -2 charge. this is an ionic compound. an ionic compound has a metal and nonmetal in it.

    the second and third numbers are correct too.

    but for calcium nitride, the correct formula is Ca3N2. Recall that Ca has a +2 charge and N a -3 charge. so when you interchange the charges of Ca2+ and N3-, with the charges becoming the subscripts of the atoms, you have the formula Ca3N2.

    The correct formula of potassium carbide is K2C2. The carbide ion is C2[2-].

    :)

  • 1 decade ago

    NaF = I think it is Sodium Floride and it is an Ionic Compound

    yes

    C3H8 = propane and is Covalent

    yes

    BaCl2 = Barium diChloride and is Ionic

    barium chloride (Only use Greek prefixes with compounds of two nonmetals)

    Ba3P2 = Barium diphosphide and is Ionic

    barium phosphide (See above), and it's more covalent than ionic

    NaO2 = Sodium Oxide and is covalent

    NaO2 is sodium superoxide, rare. ionic

    P8I3 = Phosphorous Iodide and is Covalent

    Never heard of ti. I think you have a typo.

    There is PI3, phosphorous triiodide, which is covalent.

    NH3 = Nitrogen Hydride and is Covalent

    NH3 is ammonia, and its covalent

    Na2S = Sodium Sulfide and is ionic

    yes, but its only about 50/50 ionic/covalent

    Now for this next set he gave us the Name of the compound and I have to figure out the chemical formula and the type of compound.

    Sodium Oxide = Na02 = Covalent

    No Na2O, more ionic

    Trisulfur Dioxide = S302 = Covalent

    Yes, but not a common compound

    Pentane = C5H12 = Covalent

    yes

    Calcium Nitride = CaN2 = Ionic

    Ca3N2 is calcium nitride

    Potassium Carbide = KC = Ionic

    K2C2 is potassium carbide.

    carbide ion is C2^2-

  • 3 years ago

    Ba3p2 Chemical Name

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