
Chemistry Flashcard
Flashcard
•
Science
•
12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is one of the few substances that are less dense as a solid than as a liquid?
Back
Water is one of the few substances that is less dense as a solid (ice) than as a liquid, which is why ice floats on water.
2.
FLASHCARD QUESTION
Front
What is the backbone of life in organic chemistry?
Back
Carbon is considered the backbone of life in organic chemistry due to its ability to form stable bonds with many elements, including itself.
3.
FLASHCARD QUESTION
Front
What is the dissolving agent in a solution called?
Back
The dissolving agent in a solution is called a solvent.
4.
FLASHCARD QUESTION
Front
What is the pH of a neutral aqueous solution at 25 degrees C?
Back
The pH of a neutral aqueous solution at 25 degrees Celsius is 7.
5.
FLASHCARD QUESTION
Front
What is a substance that reduces the hydrogen ion concentration of a solution called?
Back
A substance that reduces the hydrogen ion concentration of a solution is called a base.
6.
FLASHCARD QUESTION
Front
What is the process of a solid turning into a gas without becoming a liquid called?
Back
The process of a solid turning directly into a gas without becoming a liquid is called sublimation.
7.
FLASHCARD QUESTION
Front
What is the term for a mixture that has a uniform composition throughout?
Back
A mixture that has a uniform composition throughout is called a homogeneous mixture.
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