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Questions and Answers
What is a molecule composed of?
What is a molecule composed of?
- Groups of atoms that are not alike
- Substances that are not tightly connected
- Atoms that are chemically bonded together (correct)
- Elements that are not chemically bonded
What is a characteristic of a molecular substance?
What is a characteristic of a molecular substance?
- It is composed of elements that are not tightly connected
- It is composed of different types of molecules
- It is composed of molecules all of which are alike (correct)
- It is composed of atoms that are not chemically bonded
What information does a molecular formula provide?
What information does a molecular formula provide?
- The type of bonds in a molecule
- The number of molecules in a substance
- The exact number of different atoms of an element in a molecule (correct)
- The type of elements in a molecule
How many oxygen atoms are in a molecule of hydrogen peroxide?
How many oxygen atoms are in a molecule of hydrogen peroxide?
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What is the molecular formula for hydrogen peroxide?
What is the molecular formula for hydrogen peroxide?
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Study Notes
Molecular Structure
- A molecule is a group of atoms that are chemically bonded together, tightly connected by attractive forces.
Molecular Substances
- A molecular substance is a substance composed of molecules that are all alike.
Molecular Formula
- A molecular formula gives the exact number of different atoms of an element in a molecule.
- The molecular formula for hydrogen peroxide is H2O2, which indicates that the molecule contains two hydrogen atoms and two oxygen atoms chemically bonded.
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