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  • 02-05-2020
  • Chemistry
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Determine the number of significant in 400

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Аноним Аноним
  • 02-05-2020

Answer:

400 or 4x102 indicates only onesignificant figure. (To indicate that the trailing zeros are significant a decimal point must be added. 400. has threesignificant digits and is written as 4.00x102 in scientific notation.) Exact numbers have an infinite number of significant digits but they are generally not reported.

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