Think you can ace our ionic compound quiz? This engaging quiz on ionic compounds challenges you to name binary ionic compounds, master chemical formulas, and test your skills in an ionic compound naming quiz. Whether you're reviewing for school or fueling your love for chemistry, you'll uncover an example of a binary ionic compound in real-world scenarios and compare your results with trusted naming binary compounds worksheet answers. Ready for hands-on practice? Get instant feedback, track your progress, and see how you stack up against fellow chem enthusiasts. Jump into our interactive naming ionic compounds practice and explore key tips in the empirical formula of ionic compounds. Let's get started!
What is the chemical formula for sodium chloride?
ClNa
NaCl
Na2Cl
NaCl2
Sodium chloride forms when sodium ions and chloride ions combine in a 1:1 ratio. Sodium atoms lose one electron to become Na+ and chlorine gains one electron to form Cl?. Ionic compounds arrange in a crystal lattice due to these electrostatic attractions. Learn more about NaCl.
What is the name of the compound with formula KBr?
Potassium bromide
Potassium bromate
Potassium dibromide
Potassium monobromide
KBr is composed of K+ and Br? ions in equal proportions, giving the name potassium bromide. The suffix "-ide" is used for simple anions. Bromate refers to a polyatomic ion containing oxygen and is incorrect here. Ionic naming rules.
What is the ionic charge on magnesium in MgO?
+3
+2
+1
-2
Magnesium loses two electrons to achieve a noble gas configuration, forming Mg2+. Oxygen gains two electrons, forming O2?, resulting in the neutral compound MgO. The charges must balance for the formula to be correct. General chemistry reference.
What is the name for the compound CaCl2?
Calcium dichloride
Calcium chlorite
Calcium chloride
Calcium chloride2
Calcium has a +2 charge and each chloride has a - 1 charge, so two chlorides are needed. The correct systematic name is calcium chloride, using the suffix "-ide" for the anion. "Dichloride" is not used in ionic naming. Calcium properties.
What is the formula for aluminum oxide?
AlO
AlO3
Al2O3
Al3O2
Aluminum forms a +3 ion (Al3+) and oxygen forms a - 2 ion (O2?). To balance the charges, two Al3+ (total +6) combine with three O2? (total - 6), giving Al2O3. Aluminum oxide information.
What is the name of Li2S?
Lithium sulfur
Lithium sulfide
Lithium sulfate
Lithium sulfite
Li+ ions combine with S2? ions in a 2:1 ratio to form Li2S. The anion sulfide uses the "-ide" suffix. Sulfate and sulfite are oxyanions and not present here. Polyatomic and simple ions.
What is the charge on the chloride ion?
-2
+1
-1
0
Chlorine gains one electron to achieve a full valence shell, forming Cl?. This single negative charge is characteristic of halide ions. Ionic charges overview.
What is the formula for potassium oxide?
K2O2
KO
K2O
K3O
Potassium forms K+ and oxygen forms O2?. Two K+ ions are needed to balance one O2?, yielding K2O. KO would leave a net charge, and K2O2 is potassium peroxide. Potassium oxide details.
What is the chemical formula for magnesium fluoride?
MgF2
MgF
Mg2F
MgF3
Magnesium forms a +2 ion (Mg2+) and fluoride carries a - 1 charge (F?). Two fluoride ions are required to balance one Mg2+, giving MgF2. Magnesium fluoride reference.
What is the name of FeCl3?
Iron trichloride
Iron(III) chloride
Iron(II) chloride
Ferrous chloride
FeCl3 contains three chloride ions (each - 1), so iron has a +3 oxidation state, giving iron(III) chloride. The roman numeral indicates the metal's charge. Iron compounds info.
What is the formula for barium sulfide?
BS
BaS2
BaS
Ba2S
Barium forms Ba2+ and sulfide is S2?; they combine in a 1:1 ratio to form BaS. No additional balancing is needed. Barium sulfide details.
What is the name of ZnO?
Zinc oxide(I)
Zinc(II) oxide
Zinc monoxide
Zinc oxide
ZnO is composed of Zn2+ and O2 - forming zinc oxide. The simple metal zinc without multiple oxidation states typically omits a roman numeral. Zinc oxide overview.
What is the formula for sodium sulfate?
NaSO4
Na2S4O
Na2SO4
Na2SO3
Sulfate is the polyatomic ion SO42 - and sodium is Na+. Two Na+ balance one SO42 - , resulting in Na2SO4. Sulfate ion details.
What is the ionic charge of aluminum in aluminum oxide?
+3
+2
+1
-3
Aluminum oxide is Al2O3; oxygen provides a total of - 6 charge (3× - 2), so aluminum must be +3 each (2×+3=+6). This gives the +3 oxidation state. Charge balancing.
What is the formula for calcium phosphate?
CaPO4
Ca2PO4
Ca3(PO4)2
Ca2(PO4)3
Phosphate is PO43 - and calcium is Ca2+. Three Ca2+ (total +6) balance two PO43 - (total - 6), yielding Ca3(PO4)2. Calcium phosphate info.
What is the name of Cu2S?
Cupric sulfide
Copper(II) sulfide
Copper(I) sulfide
Copper sulfide
Cu2S contains two Cu+ ions (total +2) and one S2 - . Copper's oxidation state is +1, so the correct name is copper(I) sulfide. Naming transition metal ions.
What is the formula for iron(II) sulfate?
FeSO3
FeSO4
FeS2O8
Fe2(SO4)3
Iron(II) is Fe2+ and sulfate is SO42 - , which balance in a 1:1 ratio to give FeSO4. Iron(III) sulfate would be Fe2(SO4)3. Iron(II) sulfate details.
What is the name of NH4Cl?
Ammonia chloride
Ammonium chloro
Nitrogen hydrogen chloride
Ammonium chloride
NH4+ is the ammonium ion and Cl - is chloride. Combined, they form ammonium chloride. The ammonium ion is a common polyatomic cation. Ammonium chloride info.
What is the formula for lead(IV) oxide?
PbO
PbO2
Pb2O
PbO4
Lead(IV) has a +4 charge and oxide is O2 - . Two oxide ions ( - 4 total) balance one Pb4+, forming PbO2. Lead(II) oxide is PbO. Lead dioxide reference.
What is the name of Cr2O3?
Dichromium trioxide
Chromium dioxide
Chromium(III) oxide
Chromium oxide
Each Cr has a +3 charge (2×+3=+6) and each O is - 2 (3× - 2= - 6), so the compound is chromium(III) oxide. The roman numeral indicates the metal oxidation state. Chromium compounds.
What is the formula for cobalt(III) hydroxide?
Co(OH)3
Co3OH
CoOH3
CoO3H3
Cobalt(III) is Co3+ and hydroxide is OH - . Three OH - ions balance one Co3+ ion, giving Co(OH)3. Parentheses indicate the polyatomic hydroxide unit. Cobalt hydroxide details.
What is the name of Cu(NO3)2?
Copper dinitrate
Cuprous nitrate
Copper(II) nitrate
Copper nitrate
Cu(NO3)2 has two nitrate ions (NO3 - ) so copper must be +2 to balance a total - 2. Therefore it is copper(II) nitrate. The roman numeral indicates copper's charge. Copper(II) nitrate.
What is the formula for mercury(I) chloride?
Hg3Cl3
HgCl
Hg2Cl2
HgCl2
Mercury(I) exists as the dimeric ion Hg22+, so two Hg atoms share a +2 charge and pair with two Cl? ions, giving Hg2Cl2. HgCl2 is mercury(II) chloride. Mercury(I) chloride.
What is the name of K2CrO4?
Potassium chromite
Potassium chromate
Potassium dichromate
Potassium perchromate
CrO42 - is the chromate ion and pairs with two K+ ions to form potassium chromate. Dichromate is Cr2O72 - , which is different chemically. Chromate and dichromate ions.
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Study Outcomes
Identify Ionic Components -
Analyze chemical names and formulas to distinguish cations from anions in binary ionic compounds. Gain confidence in spotting metal and nonmetal partners in each ionic compound quiz question.
Name Binary Ionic Compounds -
Apply IUPAC naming rules to correctly name binary ionic compounds without prefixes. Master the ionic compound naming quiz by converting formulas into systematic compound names.
Write Chemical Formulas -
Construct balanced formulas for binary ionic compounds using charge neutrality principles. Practice turning compound names into accurate chemical formulas in our quiz on ionic compounds.
Apply Charge Balance Principles -
Use oxidation states to determine the correct ratio of ions in a compound. Strengthen your skills in balancing positive and negative charges for example of a binary ionic compound.
Classify Compound Examples -
Differentiate between binary ionic compounds and other types of compounds through targeted quiz questions. Identify real-world examples and reinforce your understanding with naming binary compounds worksheet answers.
Cheat Sheet
Ion Formation and Charges -
Atoms form ions by losing or gaining electrons to achieve a full valence shell, which is key in an ionic compound quiz. The group number on the periodic table often predicts the ionic charge: Group 1 → +1, Group 2 → +2, Group 16 → −2, etc. Recognizing these patterns from institutions like the Royal Society of Chemistry helps you quickly determine ion charges.
Empirical Formulas via Charge Balancing -
Use the crisscross method to balance total positive and negative charges when writing formulas, such as Al³❺ and O²❻ forming Al₂O₃. This approach ensures electrical neutrality by crossing the magnitude of each ion's charge to become the subscript of the other ion. Practice on reliable university worksheets strengthens your accuracy before tackling an ionic compound naming quiz.
Naming Binary Ionic Compounds -
When naming binary ionic compounds, list the cation first with its elemental name and the anion second with an "-ide" suffix (e.g., CaCl₂ is calcium chloride). This simple rule is a staple of the ionic compound naming quiz and appears in many naming binary compounds worksheet answers. Familiarizing yourself with this rule from chemistry departments like MIT OpenCourseWare boosts your confidence.
Transition Metals and Roman Numerals -
Transition metals can have multiple possible charges, so Roman numerals in parentheses indicate the specific cation charge (e.g., FeCl₂ is iron(II) chloride while FeCl₃ is iron(III) chloride). This convention prevents ambiguity and is a common focus in a quiz on ionic compounds at the university level. Always reference IUPAC guidelines to confirm the correct oxidation state when preparing for a quiz on ionic compounds.
Mnemonic Tricks and Practice Examples -
Use mnemonics like "LEO says GER" (Lose Electrons Oxidation / Gain Electrons Reduction) to remember electron transfer in ionic bonding. Work through an example of a binary ionic compound such as NaBr (sodium bromide) and verify your answers against naming binary compounds worksheet answers from sources like Purdue University's ChemWiki. Regular practice with these examples enhances retention and readiness for an ionic compound quiz.
