Using the periodic table, predict whether the following chlorides are ionic or covalent: KCl, NCl3, ICl, MgCl2, PCl5, and CCl4.
AnswerIonic: KCl, MgCl2; Covalent: NCl3, ICl, PCl5, CCl4
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PROBLEM \(\PageIndex2\)
Using the periodic table, predict whether the following chlorides are ionic or covalent: SiCl4, PCl3, CaCl2, CsCl, CuCl2, and CrCl3.
AnswerIonic: CaCl2, CuCl2, CsCl, CrCl3; Covalent: SiCl4, PCl3
PROBLEM \(\PageIndex3\)
For each of the following compounds, state whether it is ionic or covalent. If it is ionic, write the symbols for the ions involved:
(a) NF3(b) BaO(c) (NH4)2CO3(d) Sr(H2PO4)2(e) IBr(f) Na2O
Answer acovalent
Answer bionic, Ba2+, O2−
Answer cionic, \(\ceNH4+\), \(\ceCO3^2-\)
Answer dionic, Sr2+, \(\ceH2PO4-\)
Answer ecovalent
Answer fionic, Na+, O2−
PROBLEM \(\PageIndex4\)
For each of the following pairs of ions, write the symbol for the formula of the compound they will form:
(a) Ca2+, S2−(b) \(\ceNH4+\), \(\ceSO4^2-\)(c) Al3+, Br−(d) Na+, \(\ceHPO4^2-\)(e) Mg2+, \(\cePO4^3-\)
Answer aCaS
Answer b(NH4)2CO3
Answer cAlBr3
Answer dNa2HPO4
Answer eMg3(PO4)2
PROBLEM \(\PageIndex5\)
For each of the following pairs of ions, write the symbol for the formula of the compound they will form:
(a) K+, O2−(b) \(\ceNH4+\), \(\cePO4^3-\)(c) Al3+, O2−(d) Na+, \(\ceCO3^2-\)(e) Ba2+, \(\cePO4^3-\)
Answer aK2O
Answer b(NH4)3PO4
Answer cAl2O3
Answer dNa2CO3
Answer eBa3(PO4)2
Click here for a video of the solutionPROBLEM \(\PageIndex6\)
Name the following compounds:
(a) CsCl(b) BaO(c) K2S(d) BeCl2(e) HBr(f) AlF3
Answer acesium chloride
Answer bbarium oxide
Answer cpotassium sulfide
Answer dberyllium chloride
Answer ehydrogen bromide
Answer faluminum fluoride
PROBLEM \(\PageIndex7\)
Name the following compounds:
(a) NaF(b) Rb2O(c) BCl3(d) H2Se(e) P4O6(f) ICl3
Answer asodium fluoride
Answer bRubidium oxide
Answer cboron trichloride
Answer dhydrogen selenide
Answer etetraphosphorous hexaoxide
(if you are googling the answers to your homework, google may disagree with you. But we are naming based on the rules we just learned, which is why you shouldn"t trust google for the answers to your homework)
Answer fIodine trichloride
PROBLEM \(\PageIndex8\)
Write the formulas of the following compounds:
(a) rubidium bromide(b) magnesium selenide(c) sodium oxide(d) calcium chloride(e) hydrogen fluoride(f) gallium phosphide(g) aluminum bromide(h) ammonium sulfate
Answer aRbBr
Answer bMgSe
Answer cNa2O
Answer dCaCl2
Answer eHF
Answer fGaP
Answer gAlBr3
Answer h(NH4)2SO4
PROBLEM \(\PageIndex9\)
Write the formulas of the following compounds:
(a) lithium carbonate(b) sodium perchlorate(c) barium hydroxide(d) ammonium carbonate(e) sulfuric acid(f) calcium acetate(g) magnesium phosphate(h) sodium sulfite
Answer aLi2CO3
Answer bNaClO4
Answer cBa(OH)2
Answer d(NH4)2CO3
Answer eH2SO4
Answer fCa(C2H3O2)2
Answer gMg3(PO4)2
Answer hNa2SO3
PROBLEM \(\PageIndex10\)
Write the formulas of the following compounds:
(a) chlorine dioxide(b) dinitrogen tetraoxide(c) potassium phosphide(d) silver(I) sulfide(e) aluminum nitride(f) silicon dioxide
Answer aClO2
Answer bN2O4
Answer cK3P
Answer dAg2S
Answer eAlN
Answer fSiO2
PROBLEM \(\PageIndex11\)
Write the formulas of the following compounds:
(a) barium chloride(b) magnesium nitride(c) sulfur dioxide(d) nitrogen trichloride(e) dinitrogen trioxide(f) tin(IV) chloride
Answer aBaCl2
Answer bMg3N2
Answer cSO2
Answer dNCl3
Answer eN2O3
Answer fSnCl4
PROBLEM \(\PageIndex12\)
Each of the following compounds contains a metal that can exhibit more than one ionic charge. Name these compounds:
(a) Cr2O3(b) FeCl2(c) CrO3(d) TiCl4(e) CoO(f) MoS2
Answer achromium(III) oxide
Answer biron(II) chloride
Answer cchromium(VI) oxide
Answer dtitanium(IV) chloride
Answer ecobalt(II) oxide
Answer fmolybdenum(IV) sulfide
PROBLEM \(\PageIndex13\)
Each of the following compounds contains a metal that can exhibit more than one ionic charge. Name these compounds:
(a) NiCO3(b) MoO3(c) Co(NO3)2(d) V2O5(e) MnO2(f) Fe2O3
Answer anickel (II) carbonate
Answer bMolybdenum (VI) oxide
Answer ccobalt (II) nitrate
Answer dvanadium (V) oxide
Answer emanganese (IV) oxide
Answer firon (III) oxide
PROBLEM \(\PageIndex14\)
The following ionic compounds are found in common household products. Write the formulas for each compound:
(a) potassium phosphate(b) copper(II) sulfate(c) calcium chloride(d) titanium dioxide(e) ammonium nitrate(f) sodium bisulfate (the common name for sodium hydrogen sulfate)
Answer aK3PO4
Answer bCuSO4
Answer cCaCl2
Answer dTiO2
Answer eNH4NO3
Answer fNaHSO4
PROBLEM \(\PageIndex15\)
The following ionic compounds are found in common household products. Name each of the compounds:
(a) Ca(H2PO4)2(b) FeSO4(c) CaCO3(d) MgO(e) NaNO2(f) KI
Answer acalcium dihydrogen phosphate
Answer biron (II) sulfate
Answer ccalcium carbonate
Answer dmagnesium oxide
Answer esodium nitrite
Answer fpotassium iodide
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