*Flashcard Review: Structure and Properties of Water*

Flashcard
•
Science
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What happens when table salt (NaCl) is added to water?
Back
The negatively charged chloride ions (Cl-) will be attracted to the positively charged hydrogen pole of water molecules.
2.
FLASHCARD QUESTION
Front
Why does sand cool down faster than ocean water after sunset?
Back
The sand has a lower heat capacity than the ocean water.
3.
FLASHCARD QUESTION
Front
What causes sea breezes to occur during the day?
Back
Sea breezes occur during the day because land heats up more quickly than water.
4.
FLASHCARD QUESTION
Front
What does a pH of 5.8 indicate about river water?
Back
The river water is more acidic than neutral water.
5.
FLASHCARD QUESTION
Front
Why is water considered a polar molecule?
Back
Water is called a polar molecule due to the unequal sharing of electrons between its oxygen and hydrogen atoms.
6.
FLASHCARD QUESTION
Front
What is the definition of heat capacity?
Back
Heat capacity is the amount of heat energy required to raise the temperature of a substance by one degree Celsius.
7.
FLASHCARD QUESTION
Front
How does water's high heat capacity affect climate?
Back
Water's high heat capacity helps moderate climate by absorbing and releasing heat slowly.
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