Podcast
Questions and Answers
What is the defining characteristic of a compound?
What is the defining characteristic of a compound?
- It is made of two or more different elements. (correct)
- It contains only one type of element.
- It must be a gas.
- It consists of identical atoms.
Which of the following is considered a compound?
Which of the following is considered a compound?
- Nitrogen (N2)
- Hydrogen (H2)
- Water (H2O) (correct)
- Oxygen (O2)
Which chemical formula represents a molecule but not a compound?
Which chemical formula represents a molecule but not a compound?
- H2O
- NaCl
- CO2
- O2 (correct)
What term describes two or more elements that are chemically bonded?
What term describes two or more elements that are chemically bonded?
How many types of elements must be present in a compound?
How many types of elements must be present in a compound?
Which everyday item demonstrates the nature of a compound?
Which everyday item demonstrates the nature of a compound?
Which statement about compounds and molecules is correct?
Which statement about compounds and molecules is correct?
What is the chemical formula of carbon dioxide?
What is the chemical formula of carbon dioxide?
Which statement correctly describes the distinction between compounds and molecules?
Which statement correctly describes the distinction between compounds and molecules?
Which of the following chemical formulas is NOT a compound?
Which of the following chemical formulas is NOT a compound?
Flashcards
Molecule
Molecule
Two or more elements chemically bonded together.
Compound
Compound
Two or more DIFFERENT elements chemically bonded together.
Water
Water
H2O, two hydrogen atoms bonded to one oxygen atom.
Table Salt
Table Salt
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Carbon Dioxide
Carbon Dioxide
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Oxygen
Oxygen
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Compound is a type of molecule
Compound is a type of molecule
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Study Notes
Molecules vs. Compounds
- Molecule: Formed when two or more elements are chemically bonded together.
- Compound: Formed when two or more different elements are chemically bonded together.
- Crucially, a compound always involves different types of elements.
Everyday Examples
- Water (Hâ‚‚O): A compound because it contains two different elements (hydrogen and oxygen).
- Table Salt (NaCl): A compound because it contains two different elements (sodium and chlorine).
- Carbon Dioxide (COâ‚‚): A compound because it contains two different elements (carbon and oxygen).
- Oxygen (Oâ‚‚): A molecule, but not a compound because it's made of the same element (oxygen).
Umbrella Term (Inclusion)
- All compounds are molecules, but not all molecules are compounds. Think of it like "all apples are fruit, but not all fruit is apples."
- A compound is a specific type of molecule. This means any substance classifiable as a compound automatically counts as a molecule.
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Description
Test your knowledge on the differences between molecules and compounds! This quiz will explore key definitions, examples, and the relationships between these essential chemical entities. Understand how everyday substances illustrate these concepts.
