
Chemistry Review Part I
Flashcard
•
Chemistry
•
12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the meniscus in a graduated cylinder?
Back
The meniscus is the curve at the surface of a liquid in a container, such as a graduated cylinder, which is used to measure the volume of the liquid accurately. Measurements should be taken at the bottom of the meniscus.
2.
FLASHCARD QUESTION
Front
What is a hypothesis?
Back
A hypothesis is a proposed explanation for a phenomenon that can be tested through experimentation and observation.
3.
FLASHCARD QUESTION
Front
What is the proper technique for smelling chemicals in the lab?
Back
The proper technique is wafting, which involves gently waving your hand over the container to direct the scent towards your nose without directly inhaling.
4.
FLASHCARD QUESTION
Front
What is a heterogeneous mixture?
Back
A heterogeneous mixture is a type of mixture where the components are not uniformly distributed, and different parts can be seen and separated.
5.
FLASHCARD QUESTION
Front
What is the primary function of a beaker in the lab?
Back
The primary function of a beaker is to mix liquids and hold them for various experiments.
6.
FLASHCARD QUESTION
Front
What is the difference between a homogeneous and heterogeneous mixture?
Back
A homogeneous mixture has a uniform composition throughout, while a heterogeneous mixture has distinct, separate components.
7.
FLASHCARD QUESTION
Front
What safety equipment is essential in a chemistry lab?
Back
Essential safety equipment includes goggles, gloves, lab coats, and fume hoods.
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