hologens reactions Flashcards
1
Q
what do halogens react with to form white salts and what are the salts called
A
alkali metals and metal halides
2
Q
when iron reacts with a group 7 element an _________ reaction occurs and an _____ _________ is produced
A
exothermic, iron halide
3
Q
are the salts formed with iron
Fe (II) or (III)?
A
III
4
Q
whats a better way to compare the reactivity with halogens and alkali metals
A
through a displacement reaction
5
Q
what are the solutions added to the test tube for the displacement experiment
A
halide salt solution and halogen solution
6
Q
how would you know if theres been a reaction
A
a colour change
7
Q
what does oil rig stand for
A
oxidation is loss (of electrons) reduction is gain (of electrons)
