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daser333 [38]
2 years ago
5

Put an x of it is a physical property but of it is a chemical propety pit a +

Chemistry
1 answer:
makkiz [27]2 years ago
4 0
  • Density=a+
  • Flammability=a
  • Solubility=a
  • Reacts with acid to form H2=a+
  • Support combustion=a+
  • Sour taste=a
  • Melting point=a
  • Boiling point=a
  • Hardness=a
  • luster=a+
  • Odor=a
  • Maleability =a
  • Shiny=a
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A 2.912 g sample of a compounds containing only C, H, and O was completely oxidized in a reaction that yielded 3.123 g of water
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Answer:

Explanation:

18 gram of water contains 2 g of hydrogen

3.123 gram of water will contain 2 x 3.123 / 18 = .347 g of hydrogen .

44 gram of carbon dioxide contains 12 g of carbon

7.691 gram of carbon dioxide will contain 12 x 7.691 / 44 = 2.1 g of carbon .

So the sample will contain 2.912 - ( .347 + 2.1 ) g of oxygen .

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= 0.175 : 0.029 : 0.347

= .175/ .029 : 1 : .347 / .029

= 6 : 1 : 12

So empirical formula = C₆H₁₂O

Let the molecular formula be (C_6H_{12}O)_n

molecular weight = n ( 6 x 12 + 12x 1 + 16)

= 100 n

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