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QR Challenge: Chemistry Unit 1 Metrics and Scientific notation

QuestionAnswer
1. Convert to S.N.: 0.0045834 mm4.5 X 10-3
2. Convert to S.N.: 438,904 s 4.38904 X 102
3. Convert to long form: 7.6352 X 10-3 kg.007
4. Convert to long form: 3.402 X 103 g3,402
5. If you move the decimal place to the left to convert a number to scientific notation, will the power of 10 be positive or negative?positive
6. How does scientific notation differ from ordinary notation?scientific notation makes writing small/large numbers easier
7. Convert 5.70 g to mg5700 mg
8. Convert 783 g to kg.783
9. When dividing numbers in scientific notation, what must you do with the exponents?subtract
10. (6.23 X 106) + (5.34 X 106)11.57
11. (3.57 X 104) - (1.43 X 103)3.427
12. (4.8 X 105) X (2.0 X 103)9.6 X 108
13. (8.42 X 108)/(4.21 X 103)2 X 105
14. Why is the SI system used in Science?makes communication easier
15. When subtracting or adding 2 numbers in scientific notation, why do the exponents need to be the same?correct place values
16. (6.48 X 10-3)-(2.81 X 10-3)3.67 X 10-3

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