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Questions and Answers
What is the primary characteristic that differentiates ionic bonds from covalent bonds?
What is the primary characteristic that differentiates ionic bonds from covalent bonds?
- Ionic bonds involve the transfer of electrons. (correct)
- Covalent bonds create ions.
- Ionic bonds involve sharing of electrons.
- Covalent bonds result in formation of cations.
Which type of bond enables water to act as a universal solvent?
Which type of bond enables water to act as a universal solvent?
- Ionic bonds
- Hydrogen bonds (correct)
- Metallic bonds
- Covalent bonds
What is the mass number of sulfur?
What is the mass number of sulfur?
- 48
- 16
- 32.07 (correct)
- 32
In a solution, what role does the solvent play?
In a solution, what role does the solvent play?
How many valence electrons does nitrogen have, and why is this important?
How many valence electrons does nitrogen have, and why is this important?
Flashcards
What is a chemical compound?
What is a chemical compound?
A substance formed when two or more chemical elements are chemically bonded together.
What are covalent bonds?
What are covalent bonds?
Bonds that involve the sharing of electrons between atoms.
What are ionic bonds?
What are ionic bonds?
Bonds that involve the transfer of electrons between atoms, resulting in oppositely charged ions.
What is a cation?
What is a cation?
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What is an anion?
What is an anion?
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Study Notes
Subatomic Particles
- Protons have a positive charge and are located in the nucleus
- Neutrons have a neutral charge and are located in the nucleus
- Electrons have a negative charge and are located surrounding the nucleus
Nitrogen Valence Electrons
- Nitrogen has 5 valence electrons
Chemical Compounds
- A chemical compound is a substance formed when two or more chemical elements are chemically bonded together
Ionic vs. Covalent Bonds
- Ionic bonds involve the transfer of electrons between atoms, creating oppositely charged ions that attract each other
- Covalent bonds involve the sharing of electrons between atoms
Sulfur Atomic Properties
- Sulfur's mass number is 32.07
- Sulfur's atomic number is 16
- A sulfur atom has 16 protons
- A sulfur atom has 16 electrons
Hydrogen Bonds and Water
- Water (Hâ‚‚O) is a compound that uses hydrogen bonds
- Water is a universal solvent
Cation and Anion
- Cation is a positive ion
- Anion is a negative ion
Atoms Bonding
- Atoms bond to achieve a more stable electron configuration, filling their outermost electron shell
Adhesion and Cohesion
- Adhesion is the attraction between water molecules and other substances
- Cohesion is the attraction between water molecules
Solvent and Solute in a Solution
- The solvent dissolves the solute in a solution
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