Unit 1 Exam Review
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Other
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11th Grade
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Practice Problem
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Hard
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26 questions
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1.
FLASHCARD QUESTION
Front
Why is water a polar molecule?
Back
Because it has an unequal distribution of charge
2.
FLASHCARD QUESTION
Front
How does water form hydrogen bonds?
Back
By the attraction between the positive end of one water molecule and the negative end of another.
3.
FLASHCARD QUESTION
Front
Define water’s cohesive and adhesive properties.
Back
Cohesion is water's ability to stick to itself, and adhesion is water's ability to stick to other substances.
4.
FLASHCARD QUESTION
Front
How does water form a polar covalent bond within a molecule of water?
Back
By sharing electrons unequally between hydrogen and oxygen
5.
FLASHCARD QUESTION
Front
Define the following: ions and isotopes.
Back
Ions are atoms with a different number of electrons, and isotopes are atoms with a different number of neutrons.
6.
FLASHCARD QUESTION
Front
List the following bonds in order from weakest to strongest: covalent bond, hydrogen bond, ionic bond, nonpolar covalent bond.
Back
Hydrogen bond, nonpolar covalent bond, covalent bond, ionic bond
7.
FLASHCARD QUESTION
Front
Based on the following graph, identify the independent and dependent variable: Independent: Time, Dependent: Number of Plants; Independent: Number of Plants, Dependent: Plant Height; Independent: Plant Height, Dependent: Time; Independent: Time, Dependent: Plant Height
Back
Independent: Time, Dependent: Plant Height
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