ERRORS halogens

Question 1

why is silver nitrate acidifed?

Answer 1

to react with any ions that form a ppt

Question 2

reaction of chlorine and cold water equilibrium

Answer 2

produced hydrogen chlorate and hydrochloric acid

Question 3

ph changes during reaction of chlorine and cold water

Answer 3

red initially then colourless/bleached

Question 4

what colour is HX in gaseous form?

Answer 4

misty white fumes

Question 5

chlorine and cold sodium hydroxide?

Answer 5

sodium chloride and sodium (I) chlorate and water

Question 6

chlorine and hot sodium hydroxide?

Answer 6

sodium chloride and sodium (V) chlorate and water

Question 7

Why is chlorine used in pools even though its toxic?

Answer 7

small concs used.