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Chemistry
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Why does iodine have a higher boiling point than chlorine?

Iodine is a larger molecule, with more electrons, than chlorine. Therefore Iodine has stronger intermolecular forces than chlorine, which require more energy to break. This results in Iodine having a high...

BW
Answered by Ben W. Chemistry tutor
33594 Views

Explain covalent bonding and give an example of a simple covalent molecule.

A covalent bond is a shared pair of electrons between 2 atoms.An example of a simple covalent molecule is CH4 (methane)

ZS
Answered by Zoe S. Chemistry tutor
2760 Views

Describe the shape of and bonding in a molecule of benzine. Explain why benzene doesn't readily undergo reactions.

Flat 6-membered ring with 6 carbons. Each carbon in bonded two 1 hydrogen and 2 other carbons. Because a carbon must always have 4 bonds, there is a delocalised fourth electron on each carbon, which moves...

MZ
Answered by Michal Z. Chemistry tutor
2971 Views

25cm3 NaOH was titrated with 0.05mol dm-3 HCl. 21.5m3 of HCl neutralised 25cm3 of NaOH. What is the concentration of NaOH in mol dm-3?

NaOH + HCl --> NaCl + H2O 1 : 1 : 1 moles (mol) = concentration (mol dm-3) x volume (dm3)

BA
Answered by Britta A. Chemistry tutor
5628 Views

Name Group 0 in the periodic table. What is the tree in boiling points and why?

The Noble GasesThe boiling points increase as you go down the group. This is because the atoms get larger and the intermolecular forces become more numerous and stronger hence more energy is needed to bre...

EB
Answered by Ellie B. Chemistry tutor
2526 Views

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