QQuestionChemistry
QuestionChemistry
What type of bond exists between hydrogen and chlorine in HCl (hydrochloric acid)? How do you know this?
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Answer
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Step 1:I'll solve this chemistry problem following the specified formatting guidelines:
Step 2:: Identify the Elements
Hydrogen (H) and Chlorine (Cl) are the two elements in HCl. To determine the type of bond, we need to examine their electronic properties.
Step 3:: Analyze Electronegativity
\text{Electronegativity of Hydrogen} = 2.20
\text{Electronegativity of Chlorine} = 3.16
Step 4:: Calculate Electronegativity Difference
\Delta\text{Electronegativity} = |3.16 - 2.20| = 0.96
Step 5:: Determine Bond Type
An electronegativity difference between 0.5 and 1.7 indicates a polar covalent bond. This occurs when electrons are shared unequally between atoms.
Step 6:: Explain Bonding Mechanism
In HCl, chlorine is more electronegative than hydrogen. This means the shared electron pair will be pulled closer to the chlorine atom, creating a slight negative charge on chlorine and a slight positive charge on hydrogen.
Final Answer
HCl forms a polar covalent bond, where electrons are shared unequally between hydrogen and chlorine due to their electronegativity difference of 0.96.
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