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Why does iodine have a higher boiling point than chlorine?

Iodine atoms have more electrons surrounding them than chlorine molecules. This results in Iodine having much stronger inter-molecular forces than chlorine, which require more energy to break, resulting in a...
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Answered by Patrick S. • Chemistry tutor
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Write the electronic configuration of the following using the orbital method: 4. N3- 5. Ar 6. Sc3+ 7. Mn2+ 8. Fe3+ 9. V3+

4. 1s 2 2s 2 2p 6 5. 1s 2 2s 2 2p 6 3s 2 3p 6 6. 1s 2 2s 2 2p 6 3s 2 3p 6 7. 1s 2 2s 2 2p 6 3s 2 3p 6 3d 5 8. 1s 2 2s 2 2p 6 3s 2 3p 6 3d 5 9. 1s 2 2s 2 2p 6 3s 2 3p 6 3d 2
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Answered by Ewan P. • Chemistry tutor
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Potassium forms an ionic compound with sulfur. Describe what happens when atoms of Potassium react with atoms of sulfur. Give your answer in terms of electron transfer.

Electrons are transferred from potassium to sulfur. Two potassium atoms each lose one electron, and one sulfur atom gains both of the electrons lost by the potassium atoms. This results in K + ions (1+) and ...
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Answered by Sarivan K. • Chemistry tutor
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If we burn 3 moles of carbon in air (as per the equation), what mass (in grams) of carbon dioxide will be produced? What volume will this gas occupy at standard temperature and pressure?

So firstly, we assume that the oxygen is in excess (i.e. the amount of oxygen reacting won't limit the amount of carbon that can react), so we know that exactly 3 moles of carbon will be burnt. Then, from th...
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Answered by Sam H. • Chemistry tutor
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How does a metal in powder form react faster with acid than the same metal in strips/blocks?

This is due to the metal in the powder form having a larger surface area. There are 4 ways to increase the rate of reaction. Increasing the concentration of the reactants, increasing the temperature, adding ...
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Answered by Amy N. • Chemistry tutor
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