# Chemistry

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1. Significant Figures
the digits of the demical form of a # beginning with the leftmost nonzero digits and extending to the right
2. Define Inversely Proportional
a relationship where a # either increases as another decreases OR decreases as the another increases
3. Define Directly Proportional
a relationship where a # increases or both decreases together with another # at the same ratio
4. Define Accuracy
how close the average of a set of measurements is to the accept value (AAA)
5. Define Precision
how close a set of measurement values are to one another (reproducibility)
6. Define Density
the amount per unit size
7. Tera is equal to what ??
T, 10^12
8. Giga is equal to what ??
G, 10^9
9. Mega is equal to what ??
M, 10^6
10. Kilo is equal to what ??
K, 10^3
11. Hecto is equal to what ??
h, 10^2
12. Deka is equal to what ??
da, 10^1
13. Deci is equal to what ??
d, 10^-1
14. Centi is equal to what ??
C, 10^-2
15. Mili is equal to what ??
m, 10^-3
16. Micro is equal to what ??
M, 10^-6
17. Nano is equal to what ??
n, 10^-9
18. Pico is equal to what ??
p, 10^-12
19. Solve: (2.1 * 10^6)(4.0 * 10^-4)
8.4 * 10^2
20. 1.6 * 10^-8/ 8.0 * 10^-3
2. * 10^-6
21. 4.0 * 10^4
+6 * 10^3
4.6 * 10^7
22. 8.0 * 10^-4
- 9 * 10^-5
7.1 * 10^-4
23. What is the Density Formula ??
D=m/v
24. What is the % Error Formula ??
% Error= exp-acc divide by acc, multiplied by 100 %

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 Author: christina326 ID: 34606 Filename: Chemistry Updated: 2010-09-14 06:42:20 Tags: Chapter Folders: Description: Measurements and Calculations Show Answers:

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