What is the number of significant figures in the measurement 0.00456?

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Question: What is the number of significant figures in the measurement 0.00456?

Options:

Correct Answer: 3

Solution:

The significant figures are 4, 5, and 6. Leading zeros are not counted.

What is the number of significant figures in the measurement 0.00456?

What is the number of significant figures in the measurement 0.00456?

Step 1: Look at the number 0.00456.
Step 2: Identify the leading zeros. These are the zeros before the first non-zero digit (4).
Step 3: Count the significant figures starting from the first non-zero digit.
Step 4: The digits 4, 5, and 6 are significant figures.
Step 5: Do not count the leading zeros (0.00) as they are not significant.

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