

Chemistry SOL CH1
Flashcard
•
Chemistry
•
10th - 12th Grade
•
Practice Problem
•
Easy
Susan Bryant
Used 1+ times
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the melting point of a substance?
Back
The melting point is the temperature at which a solid becomes a liquid. It is a characteristic property of a substance.
2.
FLASHCARD QUESTION
Front
How do you determine the melting point from repeated trials?
Back
The melting point should be reported as the average of the trials, considering the closest values. In the example, the average of 56º, 55º, 57.5º, and 55.5ºC is 56.0ºC.
3.
FLASHCARD QUESTION
Front
What is scientific notation?
Back
Scientific notation is a way of expressing numbers that are too large or too small in a compact form, using powers of ten.
4.
FLASHCARD QUESTION
Front
How is 0.000365 expressed in scientific notation?
Back
0.000365 is expressed as 3.65 x 10⁻⁴ in scientific notation.
5.
FLASHCARD QUESTION
Front
What equipment is needed to determine the density of a liquid?
Back
To determine the density of a liquid, a balance (to measure mass) and a graduated cylinder (to measure volume) are needed.
6.
FLASHCARD QUESTION
Front
What is the purpose of a fume hood in a laboratory?
Back
A fume hood is used to remove toxic vapors and provide a safe working environment when handling hazardous materials.
7.
FLASHCARD QUESTION
Front
What should you do if your hand is exposed to an acidic solution?
Back
You should rinse the hand in running water immediately to dilute and remove the acid.
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