Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl)...
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Transcript of Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl)...
![Page 1: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/1.jpg)
Unit 4 Test Review
![Page 2: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/2.jpg)
Identify the following as covalent or ionic.
1. water (H2O)
2. salt (NaCl)3. iron (II) sulfide
(FeS)4. calcium
bromide (CaBr2)
1. covalent2. ionic3. ionic
4. ionic
![Page 3: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/3.jpg)
Identify the following as covalent or ionic.
1.CS2
2.BaI2
3.N2O4
4. PCl3
1.covalent2.ionic3.covalent4.covalent
![Page 4: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/4.jpg)
Identify the following as covalent or ionic.
1. compound is a gas at room temperature
2. compound, when melted, conducts an electric current
3. compound is composed of a metal and a nonmetal
4. compound is composed of a nonmetal and a nonmetal
1. covalent
2. ionic
3. ionic
4. covalent
![Page 5: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/5.jpg)
What is a polyatomic ion?
• An ion that contains more than 1 element
![Page 6: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/6.jpg)
What is meant by binary ionic?
• 2 elements (metal and nonmetal) joined by ionic bonds
![Page 7: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/7.jpg)
What is meant by binary molecular?
• 2 elements (both nonmetals) joined by covalent bonds
![Page 8: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/8.jpg)
What is meant by ternary ionic?
• 3 elements (metal and nonmetals) joined by ionic bonds
![Page 9: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/9.jpg)
What part of the atom is involved in chemical
reactions?
•Valence electrons
![Page 10: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/10.jpg)
Why do atoms share electrons?
• To gain the electron configuration of a noble gas
![Page 11: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/11.jpg)
Which intermolecular attractive force is the strongest?
• Hydrogen bonds
![Page 12: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/12.jpg)
Why is carbon special?
– it has four electrons in its outermost energy level
– it readily bonds with other carbon atoms
• it can form single, double, or triple bonds with other atoms
![Page 13: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/13.jpg)
What is the Octet Rule?
• in chemical compounds, atoms tend to have the electron configuration of a noble gas
![Page 14: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/14.jpg)
What is the electron configuration of the sulfide ion
(S-2)?
• 1s22s22p63s23p6
![Page 15: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/15.jpg)
A compound that ends in -ate or -ite contains ____.
•A polyatomic ion
![Page 16: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/16.jpg)
How many valence electrons are transferred from the aluminum
atom to oxygen in the formation of the compound aluminum oxide?
•3
![Page 17: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/17.jpg)
Why are metal good electrical conductors?
•They have mobile electrons
![Page 18: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/18.jpg)
Which elements can form diatomic molecules joined by a single covalent bond?
• halogens and hydrogen
![Page 19: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/19.jpg)
Which elements can form diatomic molecules joined by double covalent bonds?
• oxygen
![Page 20: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/20.jpg)
Which elements can form diatomic molecules joined by triple covalent bonds?
• nitrogen
![Page 21: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/21.jpg)
What is VESPR Theory?
• molecules adjust their shapes to keep valence electrons as far apart as possible
![Page 22: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/22.jpg)
What is a polar molecule?
•A molecule that has partial positive and negative charges
![Page 23: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/23.jpg)
Which of the following covalent bonds is the most polar?
• a. H—F
• b. H—C
• c. H—H
• d. H—N
![Page 24: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/24.jpg)
What is the charge on the cation in the ionic compound
magnesium chloride?
•+2
![Page 25: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/25.jpg)
What is the net charge of the ionic compound potassium
fluoride?
0
![Page 26: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/26.jpg)
What is the formula unit of calcium nitride?
•Ca3N2
![Page 27: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/27.jpg)
What is the formula for potassium sulfate
K2SO4
![Page 28: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/28.jpg)
What is the formula unit for sodium sulfide?
Na2S
![Page 29: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/29.jpg)
What is the name of the following compound?
NaClO2
•Sodium chlorite
![Page 30: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/30.jpg)
Are the following pairs of elements likely to form ionic
or covalent compounds?
• phosphorus and sulfur
• magnesium and oxygen
• aluminum and chlorine
• covalent
• ionic
• ionic
![Page 31: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/31.jpg)
What are some properties of ionic compounds?
• High melting points• Metal and nonmetal• Conducts electricity in solution• solid
![Page 32: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/32.jpg)
What is a cation?
• An ion with a positive charge due to loss of electrons
• The metal part of an ionic compound
![Page 33: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/33.jpg)
What is an anion?
• An ion with a negative charge due to gain of electrons
• The nonmetal part of an ionic compound
![Page 34: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/34.jpg)
Will group 6A elements gain or lose electrons when forming
ions?
How many electrons will be gained or lost?
•gain•2
![Page 35: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/35.jpg)
What is the purpose of a Roman numeral following the name
of an element?
• To indicate the presence of a transition metal that can have more than one common ionic charge.
![Page 36: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/36.jpg)
What ion will sulfur form?
•S -2
•sulfide
![Page 37: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/37.jpg)
What is the formula for iron (III) oxide?
•Fe2O3
![Page 38: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/38.jpg)
What is the formula for phosphorus tetrachloride?
•PCl4
![Page 39: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/39.jpg)
What is the formula for trisulfur dioxide?
•S3O2
![Page 40: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/40.jpg)
Reactions between atoms involve which part of the
atom?
•Valence electrons
![Page 41: Unit 4 Test Review. Identify the following as covalent or ionic. 1.water (H 2 O) 2.salt (NaCl) 3.iron (II) sulfide (FeS) 4.calcium bromide (CaBr 2 ) 1.covalent.](https://reader035.fdocuments.us/reader035/viewer/2022062404/551596cc55034691418b5c76/html5/thumbnails/41.jpg)
What is the name of the following compound?
CrF3
•Chromium (III) fluoride