Concept explainers
Interpretation:
The distance of moon from earth needs to be writing in scientific notation.
Concept introduction:
The form of expressing too big or too small numbers into a convenient decimal form with exponents of 10 is known as Scientific notation.
Answer to Problem 5STP
Correct answer: Option (b)
Explanation of Solution
Reason for correct option:
To express a regular notation in scientific notation, the decimal place is moved to the right if the number is less than zero or is moved to the left if the number is greater than zero. In this case if decimal is moved towards left the exponent of 10 will be +5.
Thus, the distance of moon from earth in general notation is 384, 400 km whereas in scientific notation it is
Reasons for incorrect options:
Option (a)
Option (c)
Option (d)
Thus, options (a), (c) and (d) are incorrect.
Chapter 4 Solutions
Glencoe Chemistry: Matter and Change, Student Edition
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