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Naming Covalent Compounds Answer Key: A Comprehensive Guide
Are you struggling to master the art of naming covalent compounds? Do you find yourself staring blankly at chemical formulas, unsure of how to translate them into proper names? This comprehensive guide provides a complete answer key, not just with the answers, but with the why behind them, empowering you to confidently name any covalent compound you encounter. We'll walk you through the rules, offer examples, and provide helpful tips to solidify your understanding. This isn't just a list of answers; it's a journey to mastering covalent nomenclature.
Understanding Covalent Compounds
Before diving into the answer key, let's briefly review what makes covalent compounds unique. Unlike ionic compounds formed by the transfer of electrons, covalent compounds involve the sharing of electrons between nonmetal atoms. This sharing creates a strong bond, resulting in molecules with distinct properties. The system for naming covalent compounds differs significantly from ionic compounds, requiring a specific set of rules.
The Rules for Naming Covalent Compounds
The process of naming covalent compounds relies on prefixes to indicate the number of atoms of each element present in the molecule. This is crucial because unlike ionic compounds, covalent compounds can exist in various ratios of atoms.
Here's a breakdown of the prefixes you'll need to know:
Mono-: 1
Di-: 2
Tri-: 3
Tetra-: 4
Penta-: 5
Hexa-: 6
Hepta-: 7
Octa-: 8
Nona-: 9
Deca-: 10
The Naming Process:
1. Identify the less electronegative element: This element is written first in the formula and its name appears first in the compound's name. Electronegativity is a measure of an atom's ability to attract electrons in a chemical bond. Generally, electronegativity increases as you move across the periodic table from left to right and decreases as you move down.
2. Apply prefixes: Use the prefixes listed above to indicate the number of atoms of each element in the molecule. Note that the prefix "mono-" is typically omitted for the first element unless it is necessary for clarity (e.g., carbon monoxide).
3. Change the ending of the second element: The name of the second element's name is modified by adding the suffix "-ide."
Examples and the "Answer Key" Approach
Let's apply these rules with some examples, providing a practical "answer key" approach.
Example 1: CO₂ (Carbon Dioxide)
Carbon is less electronegative than oxygen.
There is one carbon atom (mono- is omitted for the first element), and two oxygen atoms (di-).
Therefore, the name is Carbon Dioxide.
Example 2: N₂O₄ (Dinitrogen Tetroxide)
Nitrogen is less electronegative than oxygen.
There are two nitrogen atoms (di-) and four oxygen atoms (tetra-).
Therefore, the name is Dinitrogen Tetroxide.
Example 3: PCl₃ (Phosphorus Trichloride)
Phosphorus is less electronegative than chlorine.
There is one phosphorus atom (mono- is omitted), and three chlorine atoms (tri-).
Therefore, the name is Phosphorus Trichloride.
Example 4: SF₆ (Sulfur Hexafluoride)
Sulfur is less electronegative than fluorine.
There is one sulfur atom (mono- omitted), and six fluorine atoms (hexa-).
Therefore, the name is Sulfur Hexafluoride.
Example 5 (a slightly more challenging example): P₄O₁₀ (Tetraphosphorus Decoxide)
Phosphorus is less electronegative than oxygen.
There are four phosphorus atoms (tetra-) and ten oxygen atoms (deca-).
Therefore, the name is Tetraphosphorus Decoxide.
These examples demonstrate the systematic application of prefixes and the "-ide" suffix to accurately name covalent compounds. Remember, practice is key! Work through several problems to solidify your understanding of these principles.
Mastering Covalent Nomenclature: Beyond the Basics
While the core rules provide a strong foundation, some nuances exist. For instance, some compounds have common names that supersede the systematic naming convention (e.g., water for H₂O). Familiarity with these exceptions comes with practice and exposure to various chemical compounds. Referencing a comprehensive chemistry textbook or online resource can help you navigate these complexities.
Conclusion
Naming covalent compounds may initially seem daunting, but by understanding the rules and practicing consistently, you'll confidently translate chemical formulas into their correct names. This guide serves as a comprehensive answer key and a practical tutorial, providing you with the tools to excel in covalent nomenclature. Remember to focus on understanding the why behind each step, not just memorizing the answers. This approach will ensure lasting mastery of this crucial chemical concept.
FAQs
1. What happens if I get the electronegativity order wrong? Getting the order wrong will lead to an incorrect name. Always check the periodic table to determine which element is less electronegative.
2. Are there exceptions to the prefix rules? Yes, some common compounds have traditional names that don't strictly follow the prefix rules.
3. Where can I find more practice problems? Many chemistry textbooks and online resources offer practice problems on naming covalent compounds.
4. Is there a shortcut to determine electronegativity quickly? While a full calculation is not usually needed, knowing that electronegativity generally increases across a period and decreases down a group on the periodic table provides a good guideline.
5. How do I handle prefixes that sound similar (e.g., tetra- and penta-)? Pay close attention to the spelling and pronunciation to avoid confusion between similar-sounding prefixes. Careful writing and double-checking are essential.
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Mayfield City Schools
Created Date: 11/12/2013 5:43:06 PM
University of Texas at Austin
COVALENT BONDING Name Covalent bonding occurs when two or more nonmetals share …
Worksheet—Answer Key Nomenclature (Naming Comp…
Mar 16, 2014 · Name: Write the name for each of the following compounds. …
Ms. Demonte's Chemistry Classes - Home
Based on the elements present in a chemical formula, classify the …
Nomenclature Worksheet 6: Binary Covalent Compounds …
Nomenclature Worksheet 6: Binary Covalent Compounds Please complete …
Nomenclature Packet - Mr. Midtgard's Chemistry Class
Nomenclature Packet. Worksheet I: Binary Ionic Compounds (representative metals) – metals from groups 1A, 2A, and 3A (1, 2, and 13) …
Naming Covalent Molecules Worksheet - hamilton-local.k…
Naming Covalent Molecules Worksheet. Write the formulas for the following …
CHEM 160 – Binary Molecular Nomenclature - Solano …
Compounds The naming system is for compounds composed of two nonmetallic elements. 1. The first element keeps its name. The first element gets a prefix if it has a subscript in the formula. …
16.2 Naming Compounds - mayfieldschools.org
Naming Covalent Compounds Put prefixes (see Dichotomous key for list of prefixes) in front of element names to indicate number of atoms. ... Using Dichotomous Key handed out in class …
Livingston Public Schools / LPS Homepage
Naming Compounds Handout IONIC COMPOUNDS versus MOLECULAR COMPOUNDS ionic compound: consist of cations (positive ions) and anions (negative ions) held together by …
Ionic & Covalent Compounds Worksheet - Science
Write names for the following compounds and classify as ionic (I) or covalent (C): NaClO 4 I or C P 2 O 3 Li 3 P KHSO 4 FeS PbCrO 4 MgBr 2 ZnSO 4 K 2 CO 3 Cl 2 S 5 H 2 O Al 2 O 3 NF 3 …
Worksheet #1 - My Chemistry Class
Bonding and Structure – Bonding and Naming Basics Name: Period: Seat#: Answer the following questions: 1) What is the difference between an anion and a cation 2) What is the difference …
Writing & Naming Formulas of Ionic & Covalent …
Naming Covalent Compounds Dinitrogen trioxide Carbon tetrahydride Phosphorus pentoxide disulfur trifluoride N O 2 3 CH 4 PO 5 S F 2 3 index 33. Ionic and Covalent Structure Ionic …
Covalent Compound Naming Worksheet - Prairie Science
Naming Covalent Compounds Solutions Write the formulas for the following covalent compounds: 1) antimony tribromide SbBr3 2) hexaboron silicide B6Si 3) chlorine dioxide ClO2 4) hydrogen …
Mixed Ionic, Covalent and Acid Compound Naming and …
Mixed Ionic, Covalent and Acid Compound Naming and Formula Writing Worksheet For each of the following questions, determine whether the compound is ionic or covalent and name it …
Covalent Compound Naming - Mrs. Stevens' Website
Naming Covalent Compounds Solutions Write the formulas for the following covalent compounds: 1) antimony tribromide SbBr 3 2) hexaboron silicide B 6 Si 3) chlorine dioxide ClO 2 4) …
Chemical Formulas And Chemical Compounds Answer Key
Chemical Formulas And Chemical Compounds Answer Key Chemical Formulas and Chemical Compounds: Answer Key ... Writing and interpreting simple formulas, including ionic and …
IonicBonding!and!Writing!Formulas!Name:!KEY!!! Part A. Use …
II. Name the following Covalent Compounds:! 1. CO2 carbon dioxide ! 2. CO carbon monoxide ! 3. SO2 sulfur dioxide ! 4. SO3 sulfur trioxide ! 5. N 2O dinitrogen monoxide ! 6. NO nitrogen …
Blackline Master 5.8 Ionic Compounds: Names and …
Ionic Compounds: Names and Formulas Worksheet 1. Write the formulas for the following compounds. (a) magnesium oxide MgO (bl sodium fluoride (cl aluminum nitride (d) potassium …
Since we use different methods in naming binary covalent …
Since we use different methods in naming binary covalent (molecular) compounds and ionic compounds, the first step in naming or writing the formula of a compound is to determine …
Practice Problems for Naming Inorganic Compounds - HCC …
Practice Problems for Naming Inorganic Compounds Write the name (1-25) or formula (26-50) for each of the following inorganic compounds: ... Write correct formulas of the compounds …
Writing And Naming Binary Compounds Worksheet Answer …
Writing And Naming Binary Compounds Worksheet Answer Key Peter J. Mikulecky,Michelle Rose Gilman,Kate Brutlag Chemistry Karen C. Timberlake,2012 Known for its friendly writing style …
Naming Covalent Compounds Worksheet - reynoldsdci.com
Naming Covalent Compounds Solutions Write the chemical formulas for the following covalent compounds: 1) antimony tribromide SbBr3 2) hexaboron monosilicide B6Si 3) chlorine dioxide …
Molecular Compounds, Ionic Compounds, & Acids …
Molecular Compounds, Ionic Compounds, & Acids ANSWER KEY 1. barium sulfite 2. ammonium phosphate 3. phosphorus pentabromide 4. magnesium sulfate 5. calcium oxide 6. phosphoric …
Simulation: Ionic & Covalent Bonding - THE SCIENCE SCENE
Use the electronegativity values of atoms to help predict whether an ionic or covalent bond is most likely to form. Predict the molecular shape of a covalent molecule based upon its Lewis …
Bonding Name: POGIL #2- Covalent Bonds - University of …
< .4 Nonpolar covalent Between .4 and 1.5 Polar covalent Between 1.5 and 2 Covalent / ionic > 2 Ionic Critical Analysis Questions 1. Determine the bond character of the chemical bonds …
18 Naming Molecular Compounds-S - mrayton.com
Naming Molecular Compounds 5 Extension Questions 19. This activity focused on molecular (covalent) compounds, while an earlier activity addressed ionic compounds. Notice that the …
Ionic Bonding & Ionic Compounds Multiple Choice Review …
Mar 1, 2013 · Predicting and Naming Binary Ionic Compounds with Transition Metals 39)The charge on the manganese in the salt MnCl 3 is _____. A) 1+ B) 1- C) 2+ D) 2- E) 3+ …
20-Mixed Naming Worksheet - Mrs. Fitzpatrick's Classes
Mixed Naming Worksheet – Ionic, Covalent and Acids Directions: Be sure to determine what type of compound your substance is – ionic, binary covalent or an acid. Naming Compounds 1. NO …
Naming Compounds Practice Worksheet - Mr …
http://www.chemfiesta.com Write the formulas for the following ionic compounds: 21) lithium acetate LiC 2 H 3 O 2 22) iron (II) phosphate Fe 3 (PO
Naming Binary Covalent Compounds
Naming binary covalent compounds n the metal is written first in the name and the formula qthe name of the metal is the same as the name of the element (S = sulfur, S+4 = sulfur) ... Answer …
More Mixed Naming Fun! - Answers - Weebly
Write the formulas for the following compounds. Remember, they may be either ionic or covalent compounds, so make sure you use the right method! 11) potassium oxide K2O 12) …
Writing formulas and naming compounds answer key
Worksheet 3 Covalent Naming Chemical Compounds Worksheet Answer Key - FREE Writing And Naming Ionic Compounds Worksheet Answer Key Quiz & Worksheet - Ionic Compound …
Naming Ionic Compounds – Answer Key
Naming Mixed Ionic and Covalent - Answers Name the following compounds. Remember, they may be either ionic or covalent compounds, so make sure you use the right naming method! 1) …
Naming and Covalent Compounds
Naming and Covalent Compounds Naming 1. MgCl2 Ionic Magnesium chloride _____ 2. PF3 ... pounds; how to name compounds; how to make ionic compounds; how to make covalent …
PBS Learning Media Simulation: Tutorial Covalent …
Also, learn about naming conventions for covalent compounds. Follow the instructions closely as you move through this activity! There are some ... answer. 12. Write the names of the following …
Naming Ionic Compounds Worksheet Answers Chemistry
with more related things such organic compounds worksheet, naming ionic compounds worksheet answer key and naming organic compounds practice worksheet. We hope these Naming …
MRS SCICCHITANO - Home
What Makes A Compound Covalent? Many of the compounds in your body are covalent compounds. Covalent compounds form when atoms share electrons. The bond that forms …
POGIL 01 - Nomenclature 7 - Writing Formulas & Names …
Molecular compounds (sometimes called covalent compounds) follow a completely different set of rules for naming and formula writing than ionic compounds. The bonds in molecular …
Chapter 9: Covalent Compounds - Brinkster
Section 9.2: Naming Covalent Compounds Unlike ionic compounds, which are a total pain in the butt to name, covalent compounds are pretty easy. Let’s take a look at how easy these things …
D Why? - KING'S SCIENCE PAGE
Based on your answer to b, what type of bonding must be involved in molecular compounds? Covalent. 3. Find all of the compounds in Model 1 that have chlorine and fuorine in them. …
Chapter 3: Ions, Ionic Compounds, and Nomenclature. - MTSU
! 38! GroupVA!(15)nonEmetals!(nitrogen!(N),!phosphorous!(P))!formanions!with!a–3 charge.!!Arsenic!(As)!anionhas!E3charge,but!also!forms!cations!with!+3!or!+5
Covalent Bonding - simplychemistry.org
Covalent Bonding Bonding, interactions, and naming compounds 8.1 molecular compounds essential Understanding Ionic and molecular compounds can both be represented by …
Worksheet 4.2 c naming ionic and covalent compounds …
Worksheet 4.2 c naming ionic and covalent compounds answer key 1 4.2′′′′ Appointment of ionic compounds and covalents Ionic compounds: – are composed of positive and negative ions …
Chemistry Practice Naming Compounds
Practice Naming Compounds 1. Which of the following are ionic compounds? Which are covalent compounds? Name each compound. # Formula Ionic or Covalent? NAME a) MgF 2 b) CCl 4 …
University of Texas at Austin
NAMING IONIC COMPOUNDS Name enstructlonal Fair, Inc. Name the following compounds using the Stock Naming System. ... NaC103 CaC204 Fe203 (NH4)3P04 NaHS04 cusoa …
DIXIE MIDDLE SCHOOL SCIENCE - Dixie Middle Science
ANSWER KEY # of Electrons Gained or Lost Gain 1 Lose I Lose 2 Gain 2 Lose 3 Gain/Lose 4 Gain 3 Oxidation Number # of Valence Electrons Element Bromine Lithium Calcium ...
Chemistry Worksheet Lewis Dot Structures Name: Block: 1.
Chemistry Worksheet Lewis Dot Structures Name: Block. 2. Draw Lewis structures for the following covalent compounds: Created Date: 3/28/2014 11:29:01 AM
Covalent Bonding & Molecular Compounds Multiple …
Covalent Bonding & Molecular Compounds Multiple Choice Review PSI Chemistry Name_____ 1) Which pair of elements is most apt to form a molecular compound ... Covalent molecular …
Naming Ionic & Covalent Compounds - Valence, Formula, …
Title: Naming Ionic & Covalent Compounds - Valence, Formula, Name Author: Jeremy Schneider Subject: Chemistry Resources for High School Teachers and Students - PowerPoint Lessons, …
Ch 8 Covalent Bonding - Morrisville Borough School District
98 The Covalent Bond Name Date Multiple Covalent Bonds Use with pages 245–246. The Strength of Covalent Bonds Use with pages 246–247. 3. Evaluate the Answer Each atom in …
Nomenclature for ionic compounds - learnwithdrscott.com
Nomenclature is a system of naming. This worksheet presents a widely used system of nomenclature for ionic compounds. There are two types of metal cations with different naming …
Chemistry 301
TYPES OF CHEMICAL BONDS Name Classify the following compounds as ionic (metal + nonmetal), covalent (nonmetal + nonmetal) or both (compound containing a polyatomic Ion).
Ionic Compound Formula Writing Worksheet - Ms. Bunney's …
Ionic Compound Naming – Chilton Honors Chemistry ... Ionic Compound Formula Writing Worksheet Write chemical formulas for the compounds in each box. The names are found by …
Mixed Ionic/Covalent Compound Naming
Ionic/Covalent Compound Naming Solutions For each of the following questions, determine whether the compound is ionic or covalent and name it appropriately. 1) Na2CO3 sodium …
Mister Chemistry
Naming Chemical Compounds Worksheet Write the names of the following covalent compounds: 21) 22) 23) 24) 25) 26) 27) 28) 29) 30) S03 N2S pH3 BF3
U4LM1B-WS-Ionic and Covalent Compounds - University of …
Classify the following compounds as IONIC (metal + nonmetal), COVALENT (nonmetal + nonmetal) or BOTH (compound containing a polyatomic ion). 1. CaCl 2 IONIC 11. MgO IONIC …