EMS 21728
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EMS 21728 1
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chemistry_test_1_review__key__1_.doc Portland Community College EMS 21728
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Chemistry Unit 1 – Introduction to Chemistry Review for Unit Test 1. Be sure that you are familiar with the safety rules and WHMIS symbols in the Appendix on pages 747- 752 of your text. 2. What are the S.I. base units of length, mass, time, and volume? 3. Fill in the following chart. Practice doing the unit conversions below the chart. (Remember, the exponent goes on the base unit!) a) 3s to ms ms-3s x 1 ms= 3 x 10e3 ms 10e-3s b) 51kg to mg mg=51kg x 10e3 g x 1 mg. = 51 x 10e6 or...
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