Significant Figures
Flashcard
•
Chemistry
•
10th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What are significant figures?
Back
Significant figures are the digits in a number that contribute to its precision. This includes all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.
2.
FLASHCARD QUESTION
Front
How do you determine the number of significant figures in a measurement?
Back
Count all non-zero digits, any zeros between them, and trailing zeros in a decimal number. Leading zeros are not counted.
3.
FLASHCARD QUESTION
Front
What is the significance of significant figures in calculations?
Back
Significant figures indicate the precision of measurements and ensure that calculations reflect the certainty of the data used.
4.
FLASHCARD QUESTION
Front
How many significant figures are in the number 0.00456?
Back
3 significant figures (4, 5, and 6 are significant; leading zeros are not counted).
5.
FLASHCARD QUESTION
Front
Calculate 150.0 g + 0.005 g and give your answer with the correct number of significant figures.
Back
150.0 g (the answer is 150.0 g, as the least precise measurement has four significant figures).
6.
FLASHCARD QUESTION
Front
Which of the following has the most significant figures: 0.00340, 340, or 3.40?
Back
3.40 (it has 3 significant figures, while the others have 3 and 2 respectively).
7.
FLASHCARD QUESTION
Front
What is the rule for multiplication and division regarding significant figures?
Back
The result should have the same number of significant figures as the measurement with the least number of significant figures.
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