carmeennn
carmeennn carmeennn
  • 01-03-2017
  • Chemistry
contestada

can someone help me with this?

can someone help me with this class=

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lara86
lara86 lara86
  • 03-03-2017
for question 9 the answer is 4.517 • 10 to the 23 power
for number 10 the answer is 151 molecules
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