Ch.3 - Chemical ReactionsWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

A covalent or molecular compound is composed of more than one nonmetal together. 

Naming Molecular Compounds

Concept #1: Rules for Naming Molecular Compounds

Example #1: Write the formula for each of the following compounds.

a)  Disulfur monobromide                                    b)  Iodine Tetrachloride

Practice: Give the systematic name for each of the following compounds:

a. CO            b. N2S4             c. IO5

Additional Problems
What is the name for SO3? A) sulfite B) sulfur (VI) oxide C) sulfur trioxide D) sulfur (III) oxide E) sulfur oxide
Name the compound SCl 6. 1. sulfur(VI) chloride 2. sulfur hexachloride 3. silicon hexachloride 4. silicon chloride 5. sulfur chloride
Which of the following compounds is incorrectly named? (A) P2O5 is diphosphorus pentoxide (B) N2O5 is dinitrogen pentoxide (C) Si3N4 is trisilicon tetranitride (D) CO2 is carbon dioxide (E) S2Cl2 is disulfurous dichloride
Give the name for PBr3. A) phosphorus tribromide B) potassium tribromide C) phosphorus (III) bromide D) phosphorus (II) bromide E) phosphorus bromide
Name the compound N2O5 a. nitrogen oxide b. nitrogen pentoxide c. dinitrogen pentoxide d. nitrogen (5) oxide e. nitrogen (V) pentoxide
What is the correct name for SO2? 1. sodium dioxide 2. sulfur dioxide  3. sulfur oxide 4. sodium oxide 5. silicon oxide 6. silicon dioxide
What is the name given to the compound whose formula is S 3F6? (A) sulfur fluorine (B) trisodium hexafluoride (C) trisulfur sexafluoride (D) sulfur fluoride (E) trisulfur hexafluoride
Which one of the formula-name combinations is not correct? a) sulfur monoxide: SO b) sulfur dioxide: SO2 c) sulfur trioxide: SO3 d) disulfur monoxide: S2O e) heptasulfur oxide: S6O
What is the molar mass of tetraphosphorus pentoxide? (A) 100 g/mol (B) 142 g/mol (C) 173 g/mol (D) 204 g/mol (E) 220 g/mol
What is the name of PCl 5? 
What is the name of N 2O?
Which is the correct formula of trisulfur monophosphide? A. S3PO4 B. (SO4)3P C. S3P D. (SO3)3PO4 E. None of these choices are correct.
Consider the chemical reaction: 2 SO2 (g) → SO(g) + SO3 (g) Determine if the sentence below is true or false The name of SO is sulfur oxide.
Determine the name for P4O10. a. phosphorus (IV) oxide b. diphosphorus pentoxide c. phosphorus oxide d. phosphorus (II) oxide e. tetraphosphorus decoxide
What is the name given to the compound whose formula is N 3S6 (be careful!!!!!)? (A) nitrogen sulfur (B) trinitrogen hexasulfur (C) trinitrogen sexasulfide (D) trinitrogen hexasulfide (E) hexasulfur trinitride
Which of the following statements is/are true? i. The correct name for Cl2O6 is chlorine hexoxide ii. The correct formula for tetraboron decahyride is B4H10. iii. The correct name for CF4  is monocarbon tetrafluoride. a. i only b. ii only c. iii only d. i and ii e. i and iii
Name each molecular compound.  b. SO2
How many atoms does each of the following prefixes specify?mono-
How many atoms does each of the following prefixes specify?di-
How many atoms does each of the following prefixes specify?tri-
How many atoms does each of the following prefixes specify?tetra-
How many atoms does each of the following prefixes specify?penta-
How many atoms does each of the following prefixes specify?hexa-
Write the formula for each molecular compound.chlorine monoxide
Write the formula for each molecular compound.phosphorus pentafluoride
Determine the chemical formula of each of the following compounds:phosphorus pentachloride
Determine the chemical formula of each of the following compounds:nitrogen triiodide
Determine the chemical formula of each of the following compounds:carbon dioxide
Bromine can form compounds or ions with any number of fluorine atoms from one to five.Write the formulas of all five of these species.
Give the name or chemical formula, as appropriate, for each of the following binary molecular substances.dinitrogen tetroxide,
Give the name or chemical formula, as appropriate, for each of the following binary molecular substances.hydrogen cyanide,
Give the name or chemical formula, as appropriate, for each of the following binary molecular substances.tetraphosphorus hexasulfide.
Write the chemical formula for each substance mentioned in the following word descriptions (use the front inside cover of the textbook to find the symbols for the elements you dont know).The substance phosphorus tri-hydride, commonly called phosphine, is a toxic gas.
Use the nomenclature flow chart (the following figure) to name each compound. P2S5
Use the nomenclature flow chart (the following figure) to name each compound. I2O5
Give the name or chemical formula, as appropriate, for each of the following binary molecular substances.SF6,
Give the name or chemical formula, as appropriate, for each of the following binary molecular substances.IF5,
Give the name or chemical formula, as appropriate, for each of the following binary molecular substances.XeO3,
Chlorine reacts with oxygen to form Cl2O7 (l). Prefix Meaning Mono- 1 Di- 2 Tri- 3 Tetra- 4 Penta- 5 Hexa- 6 Hepta- 7 Octa- 8 Nona- 9 Deca- 10 What is the name of this product (see the table)?
Prefixes Used To Name Binary Covalent CompoundsNumber of Atoms         Prefix             Number of Atoms           Prefix        1                                                           6        2                                                           7        3                                                           8        4                                                           9        5                                                          10
Name each molecular compound. d. NO
Name each molecular compound. e. XeO3
Write a formula for each molecular compound. a. boron tribromide 
Write a formula for each molecular compound. b. dichlorine monoxide 
Write a formula for each molecular compound. c. xenon tetrafluoride 
Write a formula for each molecular compound. d. carbon tetrabromide 
Write a formula for each molecular compound. e. diboron tetrachloride
The compound NCl3 is nitrogen trichloride, but AlCl3 is simply aluminum chloride. Why? Check all that apply.a. The compound NCl3 is an ionic compound (metal and nonmetal), and therefore does not require prefixes\- -so NCl3 is nitrogen trichloride.b. The compound AlCl3 is an ionic compound (metal and nonmetal), and therefore does not require prefixes\- -so AlCl3 is aluminum chloride.c. AlCl3 is a molecular compound (two or more nonmetals), and therefore in its name prefixes indicate the number of each type of atom\- -so AlCl3 is aluminum chloride.d. NCl3 is a molecular compound (two or more nonmetals), and therefore in its name prefixes indicate the number of each type of atom\- -so NCl3 is nitrogen trichloride.e. None of the above.
The correct name for the compound N2O4 is ________.a. dinitrogen tetroxideb. nitrogen(IV) oxidec. nitrogen oxided. nitrogen tetroxide
Determine the name for P4O10. A) phophorus oxide B) tetraphophorus decaoxide C) diphosphorus pentaoxide D) phosphorus (IV) oxide E) phosphorus (II) oxide
Give formulas for the following compounds:chlorine trifluoride tetraphosphorus heptasulfide
Determine the name for Cl2O. a. chlorine oxide b. dichlorine monoxide c. chlorine (I) oxide d. chlorine (II) oxide e. chlorate
Name each of the following compounds:c. SO2
Name each of the following compounds:d. P2S5
Write the formula for each of the following compounds:a. diboron trioxide
The formula for dinitrogen trioxide is a) (NO3)2. b) N(OH)3. c) N2O3. d) N3O2.
Name each of the following compounds:f. S4N4
Name each of the following compounds:g. SF6
Name each of the following compounds:g. SF4
Name each of the following compounds:g. SeCl4
Name each of the following compounds:d. ICl
Write the formula for each of the following compounds:a. sulfur difluoride
Write the formula for each of the following compounds:b. sulfur hexafluoride
Write the formula for each of the following compounds:b. disulfur dichloride
Write the formula for each of the following compounds:f. ammonia
Write the formula for each of the following compounds:j. carbon tetraiodide
Write the formula for each of the following compounds:e. selenium tetrabromide
Each of the following compounds has three possible names listed for it. For each compound, what is the correct name and why aren’t the other names used?a. N2O: nitrogen oxide, nitrogen(I) oxide, dinitrogen monoxide
Write the formula for each of the following compounds:m. diphosphorus pentoxide
Write the formula for each of the following compounds:c. silicon dioxide
Write the formula for each of the following compounds:f. nitrogen trichloride
What is the name for the compound P4O10? Spell out the full name of the compound.
Each of the following compounds is incorrectly named. What is wrong with each name, and what is the correct name for each compound?b. NO2, nitrogen(IV) oxide
Each of the following compounds is incorrectly named. What is wrong with each name, and what is the correct name for each compound?g. P2S5, phosphorous sulfide
What is the name for the compound PCl 5? Spell out the full name of the compound. What is the name for the compound P4O10? Spell out the full name of the compound.
Name each molecular compound. a. SO3
Name each molecular compound.CO, NI3, SiCl4, N4Se4
Name each molecular compound. c. BrF5
Write the formula for each of the following compounds:b. disulfur dichloride
Write the formula for each of the following compounds:f. ammonia 
Write the formula for each molecular compound.phosphorus trichloride
Write the formula for each of the following compounds:j. carbon tetraiodide
Write the formula for each of the following compounds:e. selenium tetrabromide
Write the formula for each of the following compounds:m. diphosphorus pentoxide
Write the formula for each of the following compounds:c. silicon dioxide 
Enter the formula for each molecular compound.boron tribromide
Enter the formula for each molecular compound.dichlorine monoxide
Write the formulas of the following compounds:(a) chlorine dioxide
Enter the formula for each molecular compound.xenon tetrafluoride
Enter the formula for each molecular compound.carbon tetrabromide
Write the formulas of the following compounds:(b) dinitrogen tetraoxide
Determine the formula weights of each of the following compounds.phosphorus trichloride
Write the formulas of the following compounds:  (f) silicon dioxide
Enter a formula for phosphorus tribromide.
Write the formulas of the following compounds: (c) sulfur dioxide
Write the formulas of the following compounds: (d) nitrogen trichloride
Write the formulas of the following compounds: (e) dinitrogen trioxide
Write the formula for each of the following compounds:c. dinitrogen monoxide
Write the formula for each of the following compounds:d. sulfur hexachloride
Write the formula for each of the following compounds:a. diboron trioxide 
Write the formula for each of the following compounds:b. arsenic pentafluoride
Write the formula for each of the following compounds:a. sulfur difluoride 
Write the formula for each of the following compounds:b. sulfur hexafluoride 
Sample Exercise 2.14 Practice Exercise 1Give the name for each of the following binary compounds of carbon:(b) CO
Sample Exercise 2.14 Practice Exercise 1Give the name for each of the following binary compounds of carbon:(c) C3O2 
Use the nomenclature flow chart (the following figure) to name each compound.B2Cl2
Sample Exercise 2.14 Practice Exercise 1Give the name for each of the following binary compounds of carbon:(d) CBr4
Sample Exercise 2.14 Practice Exercise 1Give the name for each of the following binary compounds of carbon:(e) CF
Refer to the nomenclature flow chart to name each compound.XeO3
Before the use of systematic names, many compounds had common names. Give the systematic name for each of the following:(h) Dry ice, CO2
Each circle contains a representation of a binary compound. Determine its name, formula, and molecular (formula) mass.
Name the compound P2I4.
Each circle contains a representation of a binary compound. Determine its name, formula, and molecular (formula) mass.
Name the compound N2O5.
Give the name for each of the following binary compounds of carbon:(a) CS2
The oxides of nitrogen are very important ingredients in determining urban air pollution. Name each of the following compounds.N2 O        
The oxides of nitrogen are very important ingredients in determining urban air pollution. Name each of the following compounds.NO        
The oxides of nitrogen are very important ingredients in determining urban air pollution. Name each of the following compounds.NO2        
The oxides of nitrogen are very important ingredients in determining urban air pollution. Name each of the following compounds.N2 O5        
The oxides of nitrogen are very important ingredients in determining urban air pollution. Name each of the following compounds.N2 O4        
Name each of the following compounds:
Name each of the following compounds:
Name each of the following compounds:SO2
Name each of the following compounds:P2S5
Give the name and formula of the compound whose molecules consist of two sulfur atoms and four fluorine atoms.
Give the name and formula of the compound whose molecules consist of two chlorine atoms and one oxygen atom.
Name each molecular compound.CO
What is the chemical formula for diphosphorus pentoxide? a. P4O3 b. P2O5 c. P2O4 d. PO3 e. P2O
Name each molecular compound.NI3
Name each of the following molecular compounds.SO3
Name each of the following molecular compounds.SO2
Name each molecular compound.N4Se4
Name each of the following molecular compounds.BrF5
Name each of the following molecular compounds.NO
The formulas and common names for several substances are given below. Give the systematic names for these substances.g. laughing gas          N 2O
Name each of the following compounds:f. S4N4
Name each of the following compounds:g. SF4
Name the following compounds:(d) H2Se
Name the following compounds:(e) P4O6
Name the following compounds:(c) BCl3
Name each of the following compounds. Assume the acids are dissolved in water.d. ICl
Name the following compounds:(f) ICl3
Each of the following compounds is incorrectly named. What is wrong with each name, and what is the correct name for each compound? g. P2S5, phosphorus sulfide
What is the name of the covalent compound N2O5?
What is the name of the covalent compound CCI4?
Give the correct formula for sulfur hexafluoride.
Write a formula for each of the following molecular compounds. Express your answer as a chemical formula.a. radon tetrafluorideb. tetraphosphorus decoxidec. xenon tetrafluorided. diboron trioxidee. iodine monobromide
What is the chemical formula for silicon dioxide?
Determine the name for P4O10.a. phosphorus (IV) oxideb. diphosphorus pentoxidec. phosphorus oxided. phosphorus (II) oxidee. tetraphosphorus decoxide
Determine the name of I 2O 5A. iodine pentoxideB. iodine (V) oxideC. diiodine oxideD. iodine (II) oxideE. diiodine pentoxide
Write the formula for each molecular compound.disulfur tetrafluoride
Name each molecular compound.SiCl4
Write a formula that corresponds to each name. a. selenium dioxide: _________ b. carbon tetraiodide: _________ c. dinitrogen tetroxide: _________
Write formulas for the following compounds. iodine monochloride nitrogen trichloride dinitrogen trioxide
The chemical formula for heptasulfur dioxide is ________.a. O2Sb. S2O7c. S7O2d. S7O