Sinead O’Halloran Chem 110 05/12/2023 HW #4
7.) How is a covalent bond different from an ionic bond?
The difference between an ionic bond and a covalent bond is that covalent bonds
have an electronegativity difference that is less than 2, while ionic bonds have an
electronegativity greater than or equal to 2.
15.) Which of the following statements regarding Lewis dot symbols of ions is false B is false
with respect to outermost electrons?
A.) In magnesium oxide, O2- has eight electrons.
B.) Mg2+ always has one electron around it.
C.) In potassium chloride, K+ has no electrons around it.
D.) In ionic compounds containing chloride ions, Cl- is isoelectronic with Ar.
17.) Without referring to Table 4.2, supply a symbol (given the name) or a name A =S2-
(given the symbol) for each of the following ions. B= Potassium ion
A.) sulfide ion C= Bromide ion
B.) K+ D= F-
C.) Br- E= Calcium ion
D.) Fluoride ion F= Fe3+
E.) Ca2
F.) Iron (III) ion
22.) For copper and iron ions, we sometimes use the -ic and -ous endings. Which -ic is used for the
ending indicates the more positively charged ion? more positively
charged ion
29.) Supply a formula to match the name or a name to match the formula for the A= Silver nitrate
following: B= Na2CrO4
A.) AgNO3 C= Ammonium
B.) Sodium chromate carbonate
C.) (NH4)2SO3 D= NaHCO3
D.) Strontium hydrogen carbonate E= Aluminum
E.) Al(MnO4)3 Permagnate
F.) Copper (II) phosphate F= Cu3(PO4)2
33.) Use Lewis dot symbols to show the sharing of electrons between a phosphorus
atom and hydrogen atoms to form a molecule in which phosphorus has an octet of
electrons.
35.) Use Lewis dot symbols to show the sharing of electrons between a carbon atom
and fluorine atoms to form a molecule in which each atom has an octet of electrons.
7.) How is a covalent bond different from an ionic bond?
The difference between an ionic bond and a covalent bond is that covalent bonds
have an electronegativity difference that is less than 2, while ionic bonds have an
electronegativity greater than or equal to 2.
15.) Which of the following statements regarding Lewis dot symbols of ions is false B is false
with respect to outermost electrons?
A.) In magnesium oxide, O2- has eight electrons.
B.) Mg2+ always has one electron around it.
C.) In potassium chloride, K+ has no electrons around it.
D.) In ionic compounds containing chloride ions, Cl- is isoelectronic with Ar.
17.) Without referring to Table 4.2, supply a symbol (given the name) or a name A =S2-
(given the symbol) for each of the following ions. B= Potassium ion
A.) sulfide ion C= Bromide ion
B.) K+ D= F-
C.) Br- E= Calcium ion
D.) Fluoride ion F= Fe3+
E.) Ca2
F.) Iron (III) ion
22.) For copper and iron ions, we sometimes use the -ic and -ous endings. Which -ic is used for the
ending indicates the more positively charged ion? more positively
charged ion
29.) Supply a formula to match the name or a name to match the formula for the A= Silver nitrate
following: B= Na2CrO4
A.) AgNO3 C= Ammonium
B.) Sodium chromate carbonate
C.) (NH4)2SO3 D= NaHCO3
D.) Strontium hydrogen carbonate E= Aluminum
E.) Al(MnO4)3 Permagnate
F.) Copper (II) phosphate F= Cu3(PO4)2
33.) Use Lewis dot symbols to show the sharing of electrons between a phosphorus
atom and hydrogen atoms to form a molecule in which phosphorus has an octet of
electrons.
35.) Use Lewis dot symbols to show the sharing of electrons between a carbon atom
and fluorine atoms to form a molecule in which each atom has an octet of electrons.
