Which of the following properties apply to an complete combustion reaction? Select 2 correct answer(s) Question 1 options: yellow flame soot produced less than maximum possible heat produced by flame blue flame maximum possible heat produced by flame
1. Which of the following properties apply to an complete combustion reaction?
Question 1 options:
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yellow flame |
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soot produced |
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less than maximum possible heat produced by flame |
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blue flame |
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maximum possible heat produced by flame |
2. Hexane undergoes incomplete combustion, in which the only carbon product is CO(g).
What is the sum of the coefficients in the reaction when it is balanced with lowest whole number coefficients?
Remember to count 1 mole for any substance that does not have a coefficient.
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27 |
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41 |
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47 |
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32 |
3. Match the following compounds according to the removal location on the above diagram of the distillation tower.
Question 3 options:
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4. A mixture of liquid methanol and liquid ethanol can be separated by ________, and the physical characteristic of these compounds that allows separation is ________.
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fractional distillation; solubility |
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fractional distillation; boiling point |
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precipitation; solubility |
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precipitation; boiling point |
5. Consider the list of organic acids below.
- Butanoic acid, C3H7COOH(ℓ)
- Methanoic acid, HCOOH(ℓ)
- Octanoic acid, C7H15COOH(ℓ)
- Octadecanoic acid, CH3(CH2)16COOH(ℓ)
Order the acids from the lowest boiling point (Blank #1) to the highest boiling point (Blank #4).
| Blank # 1 | |
| Blank # 2 | |
| Blank # 3 | |
| Blank # 4 |
- butan-1-ol: 117.7°C
- butan-2-ol: 99.0°C
- 2-methylpropan-2-ol: 82.4°C
Using only the information contained in the table above, when the alcohols in the table are compared, they have the same_________ formula, but different ________ properties.
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molecular; chemical |
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structural; chemical |
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molecular; physical |
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structural; physical |
7. Match each characteristic as either a physical or chemical property.
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