To what decimal place should each answer be rounded? How many significant figures does the rounded answer have?   101 cm−99.1 cm=1.9 cm     (unrounded) After rounding, the answer should be reported to the  and thus has  . 0.5 atm+9.8 atm=10.3 atm     (unrounded) After rounding, the answer should be reported to the   and thus

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Chapter9: Gases
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Problem 34E: Iodine, I2, is a solid at room temperature but sublimes (converts from a solid into a gas) when...
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To what decimal place should each answer be rounded? How many significant figures does the rounded answer have?

 

101 cm−99.1 cm=1.9 cm     (unrounded)
After rounding, the answer should be reported to the
 and thus has
 .
0.5 atm+9.8 atm=10.3 atm     (unrounded)
After rounding, the answer should be reported to the
  and thus has
 .
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