ERRORS halogens Flashcards
1
Q
why is silver nitrate acidifed?
A
to react with any ions that form a ppt
2
Q
reaction of chlorine and cold water equilibrium
A
produced hydrogen chlorate and hydrochloric acid
3
Q
ph changes during reaction of chlorine and cold water
A
red initially then colourless/bleached
4
Q
what colour is HX in gaseous form?
A
misty white fumes
5
Q
chlorine and cold sodium hydroxide?
A
sodium chloride and sodium (I) chlorate and water
6
Q
chlorine and hot sodium hydroxide?
A
sodium chloride and sodium (V) chlorate and water
7
Q
Why is chlorine used in pools even though its toxic?
A
small concs used.
