Covalent Compounds Quiz
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Questions and Answers

What is a covalent bond?

  • A bond where atoms share protons
  • A bond where atoms exchange protons
  • A bond where atoms transfer neutrons
  • A bond where atoms share electrons (correct)

Why is oxygen able to form a covalent bond with two hydrogen atoms?

  • Oxygen has six valence neutrons and can share them with hydrogen
  • Oxygen has six valence protons and can exchange with hydrogen
  • Oxygen has six valence electrons and can complete its outer shell by sharing with hydrogen (correct)
  • Oxygen has six valence electrons and can transfer them to hydrogen

What did Irving Langmuir introduce the term 'covalence' to describe?

  • The way neighboring atoms could share neutrons
  • The way neighboring atoms could transfer electrons
  • The way neighboring atoms could exchange electrons (correct)
  • The way neighboring atoms could exchange protons

What is the role of electronegativity in covalent bonding?

<p>Atoms with higher electronegativity pull shared electrons closer (B)</p> Signup and view all the answers

What is the purpose of the outermost shell in an atom?

<p>To contain the valence electrons and follow the octet rule (B)</p> Signup and view all the answers

What is the term for the slight charge created on atoms participating in covalent bonding?

<p>Dipole (C)</p> Signup and view all the answers

What keeps electrons orbiting in bands called shells around the nucleus of an atom?

<p>The positive charge of the nucleus (D)</p> Signup and view all the answers

What is the result of covalent bonds?

<p>Sharing of electrons between atoms with different electronegativities (C)</p> Signup and view all the answers

What are the two types of covalent bonds?

<p>Polar covalent bonds and non-polar covalent bonds (D)</p> Signup and view all the answers

When does multiple covalent bonding occur?

<p>When more than one pair of electrons is shared (A)</p> Signup and view all the answers

What are covalent compounds formed from?

<p>Two or more different atoms connected with a covalent bond (B)</p> Signup and view all the answers

What are examples of atoms that typically form covalent compounds?

<p>Carbon, hydrogen, oxygen, and nitrogen (C)</p> Signup and view all the answers

What are the properties of covalent compounds?

<p>Low boiling and melting points, poor conduction of heat and electricity, varied colors, and low solubility (D)</p> Signup and view all the answers

Why do covalent compounds have low melting and boiling points?

<p>Due to weak intermolecular forces (A)</p> Signup and view all the answers

How do covalent compounds generally behave in terms of heat and electricity conduction?

<p>They are generally good insulators and poor conductors (C)</p> Signup and view all the answers

What is the term for the type of covalent bond that involves uneven electron sharing?

<p>Polar covalent bond (C)</p> Signup and view all the answers

Why do covalent compounds generally have low melting and boiling points?

<p>Weak intermolecular forces (B)</p> Signup and view all the answers

What is the primary fuel for cells and an example of a covalent compound?

<p>Glucose (C)</p> Signup and view all the answers

What is the term for the phenomenon when more than one pair of electrons is shared between atoms?

<p>Double covalent bonding (A)</p> Signup and view all the answers

What is the term for the process of naming covalent compounds using prefixes to indicate the number of atoms?

<p>Chemical nomenclature (B)</p> Signup and view all the answers

Which type of compound is generally a good insulator and a poor conductor of heat and electricity?

<p>Covalent compound (D)</p> Signup and view all the answers

What is the term for the type of covalent bond that involves even electron sharing?

<p>Non-polar covalent bond (C)</p> Signup and view all the answers

What are examples of atoms that typically form covalent compounds?

<p>Carbon, hydrogen, oxygen (D)</p> Signup and view all the answers

What type of covalent bond involves uneven electron sharing?

<p>Polar covalent bond (D)</p> Signup and view all the answers

What is the term for covalent bonding involving more than one pair of electrons being shared?

<p>Multiple covalent bonding (A)</p> Signup and view all the answers

Which property is characteristic of covalent compounds?

<p>Low solubility (D)</p> Signup and view all the answers

Why do covalent compounds have low melting and boiling points?

<p>Due to weak intermolecular forces (A)</p> Signup and view all the answers

What is the general conductive property of covalent compounds?

<p>Good insulators and poor conductors of heat and electricity (C)</p> Signup and view all the answers

How do covalent compounds differ from ionic compounds in terms of solubility?

<p>Covalent compounds are generally insoluble (B)</p> Signup and view all the answers

What are the examples of atoms that typically form covalent compounds?

<p>Carbon, hydrogen, oxygen, and nitrogen (B)</p> Signup and view all the answers

How are covalent compounds named?

<p>Using prefixes to indicate the number of atoms (B)</p> Signup and view all the answers

Study Notes

Covalent Compounds: Key Concepts and Examples

  • Covalent bonds result from the sharing of electrons between atoms with different electronegativities
  • Types of covalent bonds include polar covalent bonds (uneven electron sharing) and non-polar covalent bonds (even electron sharing)
  • Multiple covalent bonding occurs when more than one pair of electrons is shared
  • Covalent compounds are formed when two or more different atoms are connected with a covalent bond
  • Examples of atoms that typically form covalent compounds include carbon, hydrogen, oxygen, and nitrogen
  • Covalent compounds are made of atoms that share electrons, creating a covalent bond
  • Properties of covalent compounds include low boiling and melting points, poor conduction of heat and electricity, varied colors, and low solubility
  • Covalent compounds have low melting and boiling points due to weak intermolecular forces
  • Covalent compounds are generally good insulators and poor conductors of heat and electricity
  • Covalent compounds differ from ionic compounds in terms of electron sharing, melting and boiling points, conduction, solubility, vapor pressure, and brittleness
  • Examples of covalent compounds and their uses include water (universal solvent), ammonia (cleaning products, fertilizer), and glucose (primary fuel for cells)
  • Naming covalent compounds involves using prefixes to indicate the number of atoms and adding "ide" to the second element, with exceptions for certain elements.

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Description

Test your knowledge of covalent compounds with this quiz covering key concepts, examples, properties, and naming conventions. Explore the characteristics of covalent bonds, types of covalent compounds, and their distinct properties compared to ionic compounds. Examples such as water, ammonia, and glucose are highlighted, along with their practical applications.

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