
Chemistry Flashcard
Flashcard
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Biology
•
University
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Practice Problem
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Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a hydrogen bond?
Back
A hydrogen bond is a weak attraction between a hydrogen atom covalently bonded to an electronegative atom and another electronegative atom.
2.
FLASHCARD QUESTION
Front
Which diagram depicts how water forms hydrogen bonds?
Back
Diagram A shows the arrangement of water molecules and their hydrogen bonds.
3.
FLASHCARD QUESTION
Front
What is cellulose?
Back
Cellulose is a polysaccharide that serves as a structural component in the cell walls of plants.
4.
FLASHCARD QUESTION
Front
How many valence electrons does phosphorus (P) have?
Back
Phosphorus has 5 valence electrons.
5.
FLASHCARD QUESTION
Front
What are valence electrons?
Back
Valence electrons are the electrons in an atom's outermost shell that are involved in chemical bonding.
6.
FLASHCARD QUESTION
Front
What type of reaction builds macromolecules from monomers?
Back
Macromolecules are built by joining monomers through dehydration synthesis.
7.
FLASHCARD QUESTION
Front
What is dehydration synthesis?
Back
Dehydration synthesis is a chemical reaction that involves the removal of water to join two molecules together.
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