6 of them.
It's 417.3g
1 of them.
There are 4 significant figures in this measurement.
There are 3 significant figures in this measurement.
There are 2 significant figures in this measurement.
78 g
The measurement of 417.32 g has five significant figures. Each non-zero digit and any zeros between them are considered significant in a decimal number.
When rounded to four significant figures, 417.32 g would be 417.3 g.
There is 1 significant figure in this measurement.
Three.
It is: 7000 rounded to 1 significant figure
1005 g
6 of them.
It's 417.3g
12
The product of 0.12 g, 1.8 g, and 0.562 g should have the same number of significant figures as the measurement with the fewest significant figures, which is 0.12 g in this case. Therefore, the product should be expressed with two significant figures.