4
There are 4 significant figures in this number.
7 of them.
5 of them.
There are 3 significant figures.
1.056ml has four significant figures. A significant figure is any non-zero digit or any embedded or trailing zero. Leading zeros are not significant.
6 significant figures.
There are 4 significant figures in this number.
There are 5 significant figures in this measurement.
No
As many as are required
5 significant figures.
7 of them.
2 of them.
5 of them.
5
There are six significant figures in 1009.630 mL. The zeros that follow the decimal point and are trapped between nonzero digits are considered significant.
There's one, because after the decimal point the first non zero number is 6.