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Why are group 1 elements more reactive as you go down the group?

Group 1 elements display similar properties as they all only have a single electron on their outer shell. They make up the first column of the periodic table and are ordered in ascending weight from top to b...
EH
Answered by Emma H. • Chemistry tutor
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Octane and isooctane can be separated in a laboratory. Name this technique and outline how they are separated.

Fractional distillation is used to separate a isooctane from a mixture of octane and isooctance. Isooctane has a lower boiling point, so reaches the top of the distillation column first, where it will cool a...
AT
Answered by Annie T. • Chemistry tutor
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The forward direction of a chemical reaction is exothermic. What happens if you increase the temperature of the system?

The forward direction of this reaction is exothermic. If the temperature of the system is increased, the equilibrium will move in the endothermic direction to compensate for the extra heat added. More produc...
EK
Answered by Eleanor K. • Chemistry tutor
9424 Views

Explain why chlorine is more reactive than iodine.

Chlorine’s outer electrons / shell closer to the nucleus so the chlorine nucleus has greater attraction for outer electrons / shell and therefore chlorine gains an electron more easily.
JN
Answered by Janani N. • Chemistry tutor
2159 Views

Explain which molecule has the highest boilng point HCL, water ot CH4?

HCl, due to chlorine electronegativity, is a polar molecule. This causes dipole-dipole interactions between molecules that need to be overcome for the molecules to boil. Water also has dipole interactions be...
JŻ
Answered by Julia Ż. • Chemistry tutor
19527 Views