Question

match each value to the number of significant digits in the value. 5 10.070 2 2.0×10^1 1 20 4 0.01012×10^2 3 20.0 1 0.8 1. 1 2. 2 3. 3 4. 4 5. 5

Explanation:

Step1: Analyze 10.070

Non - zero digits and zeros between non - zero digits or trailing zeros after a decimal point are significant. So 10.070 has 5 significant digits.

Step2: Analyze 2.0×10¹

In scientific notation, the digits in the coefficient are significant. Here, 2.0 has 2 significant digits.

Step3: Analyze 20

Without a decimal point, the trailing zero may or may not be significant. By default, 20 has 1 significant digit.

Step4: Analyze 0.01012×10²

First, rewrite it as 1.012. Leading zeros are not significant, and non - zero digits and zeros between non - zero digits are significant. So it has 4 significant digits.

Step5: Analyze 20.0

Trailing zero after a decimal point is significant. So 20.0 has 3 significant digits.

Step6: Analyze 0.8

Non - zero digit is significant. So 0.8 has 1 significant digit.

Answer:

10.070 - 5
2.0×10¹ - 2
20 - 1
0.01012×10² - 4
20.0 - 3
0.8 - 1