Question 1

A)Approximately in which range of electronegativity differences would polar covalent bonds occur?(1 point)
Responses

0
to 1.0
0 to 1 point 0

0
to 0.5
0 to 0 point 5

0.5
to 1.7
0 point 5 to 1 point 7

−1.0
to 0
negative 1 point 0 to 0
Question 2
A)
Use the image to answer the question.

An illustration shows the periodic table of elements with elements arranged in increasing order of atomic number in 18 columns (groups) and 7 rows (periods).

This image shows electronegativities of elements on the periodic table. Based on this information, which element is most likely to form a strong ionic bond and take on electrons?

(1 point)
Responses

helium (He)
helium (He)

cesium (Cs)
cesium (Cs)

hydrogen (H)
hydrogen (H)

fluorine (F)
fluorine (F)
Question 3
A)Which option contains an example of a polyatomic ion?(1 point)
Responses

KNO3
KNO 3

O2
O 2

CaCl2
CaCl 2

MgCl
MgCl
Question 4
A)Which statement best explains the difference between polar and nonpolar covalent bonds?(1 point)
Responses

Polar covalent bonds share electrons unequally, while nonpolar covalent bonds share electrons equally.
Polar covalent bonds share electrons unequally, while nonpolar covalent bonds share electrons equally.

Polar covalent bonds share electrons, while nonpolar covalent bonds give/take electrons.
Polar covalent bonds share electrons, while nonpolar covalent bonds give/take electrons.

Polar covalent bonds give/take electrons, while nonpolar covalent bonds share electrons.
Polar covalent bonds give/take electrons, while nonpolar covalent bonds share electrons.

Polar covalent bonds share electrons equally, while nonpolar covalent bonds share electrons unequally.
Polar covalent bonds share electrons equally, while nonpolar covalent bonds share electrons unequally.
Question 5
A)
Use the image to answer the question.

An illustration shows the periodic table of elements with elements arranged in increasing order of atomic number in 18 columns (groups) and 7 rows (periods).

Which statement describes the bonds in iron sulfate (FeSO4)?

(1 point)
Responses

Fe and S are covalently bonded, and S and O also have a covalent bond are covalently bonded.
F e and s are covalently bonded, and s and o also have a covalent bond are covalently bonded.

Fe and S are ionically bonded, while S and O are covalently bonded.
F e and s are ionically bonded, while s and o are covalently bonded.

Fe and S are ionically bonded, and S and O also are ionically bonded.

1 answer

Here are the answers to your questions based on chemistry principles:

Question 1: A) Approximately in which range of electronegativity differences would polar covalent bonds occur?
Response: 0.5 to 1.7
Reason: Polar covalent bonds typically occur when the electronegativity difference between the two atoms is between 0.5 and 1.7.


Question 2: A) Based on this information, which element is most likely to form a strong ionic bond and take on electrons?
Response: fluorine (F)
Reason: Fluorine has the highest electronegativity on the periodic table, making it very likely to attract and take on electrons to form ionic bonds.


Question 3: A) Which option contains an example of a polyatomic ion?
Response: KNO3
Reason: KNO3 contains the nitrate ion (NO3^-), which is a polyatomic ion.


Question 4: A) Which statement best explains the difference between polar and nonpolar covalent bonds?
Response: Polar covalent bonds share electrons unequally, while nonpolar covalent bonds share electrons equally.
Reason: This is the fundamental difference; polar bonds have unequal sharing due to differences in electronegativity, while nonpolar bonds share electrons equally.


Question 5: A) Which statement describes the bonds in iron sulfate (FeSO4)?
Response: Fe and S are ionically bonded, while S and O are covalently bonded.
Reason: Iron (Fe) typically forms ionic bonds with nonmetals, while the sulfate ion (SO4^2-) features covalent bonds between sulfur and oxygen.


If you have any further questions or need clarification, feel free to ask!