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Chemistry, 21.06.2019 20:30
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A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?
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Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.
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The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth
Answers: 1
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