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How does the reactivity of group 7 elements (the halogens) change down the group and why? (A Level)

As you move down group 7 from fluorine to iodine, the reactivity of the elements decreases. The halogens are non-metals and when non-metals react with metals, they GAIN the electrons that the metals lose. As...
NL
Answered by Natalie L. • Chemistry tutor
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How do you differentiate between alkanes and an alkene?

An alkane is a saturated hydrocarbon, which basically means it is an compound made up of carbons and hydrogens (hence the hydrocarbon) and has the maximum number of hydrogens (hence it is saturated). Whereas...
HF
Answered by Hannah F. • Chemistry tutor
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Why is cyclohexa-1,3,5-triene no longer accepted for the structure of benzene where the molecular formula is C6H6? Which is more stable and why?

This question requires understanding of the structure of benzene and forces the student to be able to describe why cyclohexa-1,3,5-triene is unable to be used to describe the structure of benzene. As benzene...
SS
Answered by Shabri S. • Chemistry tutor
33690 Views

Explain the effect of raising the temperature of exothermic equilibrium reaction.

Raising the temperature of an exothermic reaction will cause the equilibrium to move to the left, reducing the proportion of the product in the mixture. Exothermic reactions release heat and the reverse equi...
MB
Answered by Matthew B. • Chemistry tutor
3751 Views

An atom of iron is represented as 26Fe 56 Give the number of protons, neutrons and electrons in this atom of iron.

26 protons, 30 neutrons and 26 electrons.
SM
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