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Chemistry
GCSE

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 i...

Answered by Patrick S. Chemistry tutor
1627 Views

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+ i...

Answered by Sarivan K. Chemistry tutor
3072 Views

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, addi...

Answered by Amy N. Chemistry tutor
7803 Views

What is a mole

A mole is a unit of 'amount of stuff' and is equal to 6.022x1023. It is such a big number because we use the mole to describe how many atoms we have of something, so instead of saying "I h...

Answered by Taylor M. Chemistry tutor
1784 Views

Why is Florine more electronegative than oxygen

Fluorine has 1 more proton than oxygen and one more electron but the same number of shells so no increased shielding. This means there is more electostatic attraction from the nucleus so increased pull fr...

Answered by Jamie A. Chemistry tutor
9171 Views

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