super chem sig figs

All non-zero integers:

417283 has ___ sig figs

6

All Exact numbers have unlimited sig figs:

1 min = 60 secs

unlimited number of sig figs

Zeros that are between non-zero integers are ALWAYS significant:

100045 has __ Sig figs

600.4545 has __ Sig figs

23.04 has __ Sig figs

6

7

4

Zero that come before non-zero integers are NEVER significant:

0.98 has __ Sig figs

0.3 has __ Sig figs

0.0000000000389 has __ Sig figs

2

1

3

Zero that follows a decimal point and is not a leading zero is always significant:

1.00 has __ Sig figs

9.050 has __ Sig figs

2.0 has __ Sig figs

3

4

2

Zeros that come after non-zero integers and are followed by a decimal point, the zeros are significant:

1000. has __ Sig figs

20. has __ Sig figs

4

2

Zeros that come after non-zero integers but are no followed by a decimal point, the zeros are NOT significant:

1000 has __ Sig figs

200 has __ Sig figs

50 has __ Sig figs

1

1

1

Adding and subtracting, must have the same place value as the ____ precise measurement.

least

51.25L - 1.5L =

49.8L

Multiplying and dividing, must contain the same number of significant digits as the measurement with the ______ significant digits.

fewest

4.5 cm x 2.54 cm x 3.215 cm

37 cm³