Chem 103- Module 1.pdf 2026//2027!!
Chem 103- Module 1
Study online at https://quizlet.com/_a75mk4
1. accuracy describes how close a measurement is to
the actual value
2. precision describes how closely repeated measure-
ments agree with each other
3. significant figures 1. all nonzero numbers are significant
2. zeros that appear between nonzero digits
are significant
3. leading zeros are NOT significant
4. trailing zeros are significant IF there is a
decimal point, but NOT significant if there
is not a decimal
4. adding/subtracting sig figs least number of decimal places
5. multiplying/dividing sig figs least number of sig figs
6. mega (M) 10^6
7. kilo (k) 10^3
8. centi (c) 10^-2
9. milli (m) 10^-3
10. micro (u) 10^-6
11. nano (n) 10^-9
12. Angstrom 10^-10
13. pico (p) 10^-12
14. density formula density=mass/volume
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Page 1 of 3 9/15/2026, 7:27:11 AM
Chem 103- Module 1
Study online at https://quizlet.com/_a75mk4
1. accuracy describes how close a measurement is to
the actual value
2. precision describes how closely repeated measure-
ments agree with each other
3. significant figures 1. all nonzero numbers are significant
2. zeros that appear between nonzero digits
are significant
3. leading zeros are NOT significant
4. trailing zeros are significant IF there is a
decimal point, but NOT significant if there
is not a decimal
4. adding/subtracting sig figs least number of decimal places
5. multiplying/dividing sig figs least number of sig figs
6. mega (M) 10^6
7. kilo (k) 10^3
8. centi (c) 10^-2
9. milli (m) 10^-3
10. micro (u) 10^-6
11. nano (n) 10^-9
12. Angstrom 10^-10
13. pico (p) 10^-12
14. density formula density=mass/volume
1/3
Page 1 of 3 9/15/2026, 7:27:11 AM
