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s344n2d4d5 [400]
3 years ago
5

Organic chemistry!!! Plz help

Chemistry
1 answer:
jasenka [17]3 years ago
3 0

Answer:

3) 2,2-dichloroheptane

Explanation:

2,2-dichloroheptane

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Which of the three subatomic particles have a neutral charge? *
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Answer:

<h2><em>A. Neutron</em></h2>

Explanation:

Neutrons and protons are found in the nucleus of an atom. BUT unlike Protons <em>(Positive charge/ P an P is how I remember it) </em>or Electrons, which have a <em>negative charge,</em> Neutrons have zero charge which means they are neutral particles. <em>(Neutral an Neutron both start with N.)</em>

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How much energy is required to convert 100.0 g of water completely<br> to steam?
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<u>225.6 kJ</u>, <em>assuming the water is already at 100 °C</em>

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The correct answer to this question will depend on the initial temperature of the water to which heat is added to produce steam.  Energy is required to raise the water temperature to 100°C.  At that point, an energy of vaporization is needed to convert liquid water at 100 °C to water vapor at 100°C.  The heat of vaporization for water is 2256.4 kJ/kg.  The energy required to bring 100g of water from a lower temperature to 100°C is calculated at 4.186 J/g°C.  We don't know the starting temperature, so this step cannot be calculated.

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Hope this helps!
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