How many sig figs does 0.020 700 have?

Answer 1

The number 0.020700 has five significant figures. The leading zeros (0.02) are not counted as significant, but the digits 2, 7, 0, 0, and the trailing zeros after the 7 are significant. Therefore, the significant figures are 2, 0, 7, 0, and 0, totaling five.