What does it mean for a molecule to be polar?

The Fascinating Properties of Water and Its Role in Life

Interactive Video
•
Chemistry, Biology, Science
•
9th - 10th Grade
•
Easy

Patricia Brown
Used 1+ times
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It has a charge due to unequal sharing of electrons.
It is always positively charged.
It is non-reactive with other molecules.
It has an equal distribution of electrons.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is oxygen considered highly electronegative?
It has fewer protons in its nucleus.
It is located at the bottom of the periodic table.
It has more electron levels shielding the nucleus.
It pulls electrons towards itself due to a high number of protons.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of hydrogen bonds in water molecules?
They repel water molecules from each other.
They create a strong covalent bond between hydrogen and oxygen.
They form an attraction between the positive hydrogen and negative oxygen of different water molecules.
They cause water to evaporate quickly.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which property of water is responsible for surface tension?
Evaporation
Condensation
Cohesion
Adhesion
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does capillary action occur in plants?
Water molecules repel each other, moving up the plant.
Water molecules stick to the plant surface and pull other molecules along.
Water molecules evaporate quickly, leaving the plant dry.
Water molecules form a solid structure within the plant.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of water's high specific heat?
It helps moderate temperature changes in the environment.
It allows water to freeze at higher temperatures.
It causes water to become more dense as it cools.
It makes water evaporate faster.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does ice float on water?
Ice has a higher specific heat than water.
Ice molecules are heavier than water molecules.
Ice forms a three-dimensional matrix that decreases its density.
Ice is denser than liquid water.
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