ZIKARRIA WILSON - Chemical Math Session 2.pdf - Homework...

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HomeworkChemical MathSession 2Numbers written in scientific notation have two parts – a base and a power of 10. The firstnumber is the base and is a number between one and 10. The power of 10 describes how far thedecimal was moved.3,400,000 = 3.4 • 1065.42 • 108= 542,000,0000.0000000012 = 1.2 • 10-91.045 • 10-4= 0.0001045Numbers in scientific notation can be multiplied and divided without having to change them intostandard form. First, multiply or divide the bases, and then use the rules of exponents to multiplyor divide the powers of 10. Recall that to multiply exponents you add and to divide exponentsyou subtract. The final step is to make sure the answer is in scientific notation. You may need toadjust the decimal and exponent to do this.(1.45 • 108)(3.6 • 103)1.45 • 3.6 = 5.22Multiply the bases.108• 103= 1011Add the exponents.5.22 • 1011Write your answer in scientific notation.4.79 • 10-4Write your answer in scientific notation.
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Term
Summer
Professor
Kuhnert
Tags
Exponentiation, final step

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