Evaluate the Fraction (Please see screenshot) Evaluate the fraction.(6.38 × 104) (5.15 × 106)2.51 x 1081.31Incorrect< FeedbackMacmillan LearningAlthough you can simply enter thenumbers in your calculator and let thecalculator do the work, somecalculators can be confusing in the waythat exponential numbers are entered. Itis always good to do a mental check inyour head, estimating the order ofmagnitude of the answer, to make sureyou have not made a mistake inentering the numbers.In evaluating the fraction, treat thecoefficients and the powers of 10separately at first. Remember to addexponents when multiplying and tosubtract exponents when dividing.

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Evaluate the fraction. (6.38 x 104) (5.15 x 106) 2.51 x 108 1.31 Incorrect

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Chapter13: Gases

Section: Chapter Questions

Problem 49A

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Question

Evaluate the Fraction (Please see screenshot)

Evaluate the fraction.
(6.38 × 104) (5.15 × 106)
2.51 x 108
1.31
Incorrect
< Feedback
Macmillan Learning
Although you can simply enter the
numbers in your calculator and let the
calculator do the work, some
calculators can be confusing in the way
that exponential numbers are entered. It
is always good to do a mental check in
your head, estimating the order of
magnitude of the answer, to make sure
you have not made a mistake in
entering the numbers.
In evaluating the fraction, treat the
coefficients and the powers of 10
separately at first. Remember to add
exponents when multiplying and to
subtract exponents when dividing.

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Hi, thank you for the explanation. Although I understand what you are referencing, I placed that response and it said incorect.

Evaluate the fraction.
(6.38 × 104) (5.15 × 10°)
2.51 x 108
1.31 ×10²
Incorrect

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