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Questions and Answers
In the Lewis structures provided, which molecule has a central atom that lacks an octet?
In the Lewis structures provided, which molecule has a central atom that lacks an octet?
- SiH4
- OF2
- CHO2⁻ (correct)
- NO⁺
How many lone pairs of electrons does the nitrogen atom have in the Lewis structure of NO⁺?
How many lone pairs of electrons does the nitrogen atom have in the Lewis structure of NO⁺?
- Two
- One
- None (correct)
- Three
Which molecule has all outer atoms with octets in the provided Lewis structures?
Which molecule has all outer atoms with octets in the provided Lewis structures?
- CHO2⁻
- NO⁺
- SiH4
- OF2 (correct)
How many electrons are placed on the central atom in OF2 after Step 3?
How many electrons are placed on the central atom in OF2 after Step 3?
Which molecule has a nitrogen atom single bonded to an oxygen atom in its Lewis structure?
Which molecule has a nitrogen atom single bonded to an oxygen atom in its Lewis structure?
What is the total number of valence electrons in acetylene (HCCH)?
What is the total number of valence electrons in acetylene (HCCH)?
Which molecule contains a carbon atom double bonded to an oxygen atom in its Lewis structure?
Which molecule contains a carbon atom double bonded to an oxygen atom in its Lewis structure?
What is the charge on the CHO2⁻ ion based on its Lewis structure?
What is the charge on the CHO2⁻ ion based on its Lewis structure?
How many lone pairs of electrons does the central oxygen atom have in OF2?
How many lone pairs of electrons does the central oxygen atom have in OF2?
For which molecule, based on their Lewis structures, is it mentioned that nothing changes because each atom has an octet as drawn?
For which molecule, based on their Lewis structures, is it mentioned that nothing changes because each atom has an octet as drawn?
Which molecule, based on the Lewis structures provided, has a carbon atom with a single bond to two oxygen atoms, each with three lone pairs of electrons?
Which molecule, based on the Lewis structures provided, has a carbon atom with a single bond to two oxygen atoms, each with three lone pairs of electrons?
How many valence electrons are there in the Lewis structure of acetylene (HCCH) after Step 1 of the solution?
How many valence electrons are there in the Lewis structure of acetylene (HCCH) after Step 1 of the solution?
In the Lewis structure of NH3, how many lone pairs of electrons does the nitrogen atom have?
In the Lewis structure of NH3, how many lone pairs of electrons does the nitrogen atom have?
For which molecule, based on its Lewis structures, is it mentioned that we must move another pair of electrons to form a triple bond?
For which molecule, based on its Lewis structures, is it mentioned that we must move another pair of electrons to form a triple bond?
Which molecule's Lewis structure shows a nitrogen atom double bonded to an oxygen atom?
Which molecule's Lewis structure shows a nitrogen atom double bonded to an oxygen atom?
How many lone pairs of electrons does the central oxygen atom have in the Lewis structure of OF2?
How many lone pairs of electrons does the central oxygen atom have in the Lewis structure of OF2?
In the Lewis structure of SiH4, how many outer atoms have octets as drawn?
In the Lewis structure of SiH4, how many outer atoms have octets as drawn?
For which molecule, based on the Lewis structures provided, is it mentioned that Si already has an octet, so nothing needs to be done?
For which molecule, based on the Lewis structures provided, is it mentioned that Si already has an octet, so nothing needs to be done?
'NO+' mentions that neither atom has an octet and we must move electrons to form a multiple bond. How many valence electrons did we add for this ion?
'NO+' mentions that neither atom has an octet and we must move electrons to form a multiple bond. How many valence electrons did we add for this ion?
In the Lewis structure of HCN, how many lone pairs of electrons does the carbon atom have?
In the Lewis structure of HCN, how many lone pairs of electrons does the carbon atom have?
What is the total number of valence electrons in the Lewis structure of ammonia (NH3)?
What is the total number of valence electrons in the Lewis structure of ammonia (NH3)?
In the Lewis structure of H3CCH3, how many total valence electrons are present after Step 1 of the solution?
In the Lewis structure of H3CCH3, how many total valence electrons are present after Step 1 of the solution?
How many lone pairs of electrons does the nitrogen atom have in the Lewis structure of HCN?
How many lone pairs of electrons does the nitrogen atom have in the Lewis structure of HCN?
Which molecule, based on its Lewis structure, requires moving electrons to form a triple bond in order to achieve octets?
Which molecule, based on its Lewis structure, requires moving electrons to form a triple bond in order to achieve octets?
In the Lewis structure of HCCH, how many lone pairs of electrons does the central carbon atom have?
In the Lewis structure of HCCH, how many lone pairs of electrons does the central carbon atom have?
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