Other reactions of halides

Question 1

fill in the table below:

Cl- Br- I-
AgNO3 added:

dilute NH3:

con. NH3:

Answer 1

Cl- Br- I-
AgNO3 added: white pre. cream pre. yellow

dilute NH3: soluble insoluble insoluble

con. NH3: soluble soluble insolube

Question 2

silver nitrate cannot be used to test for fluoride ions as

Answer 2

silver fluoride is soluble in water

Question 3

the silver chloride dissolves in ammonia because a ……………….is formed

Answer 3

complex ion

Question 4

all of the hydrogen halides are……………….and exist as…………………….molecules

Answer 4

colourless gases

polar diatomic molecules

Question 5

hydrogen halides react with water to form

these are all…………….

Answer 5

acidic solutions

colourless

Question 6

the equation for

hydrogen flurodie and water to produce……….acid is

Answer 6

HF + H2O {===} H3O+ + F-

hydrofluoric acid

Question 7

the equation for

hydrogen chloride and water to produce…………….acid is

Answer 7

HCI + H2O = H3O+ + CI-

hydrochloric

Question 8

the equation for

hydrogen bromide and water to produce……………..aicd is

Answer 8

HBr + H2O = H3O+ + Br-

hydrobromic acid

Question 9

the equation for

hydrogen iodide and water to produce…………….acid is

Answer 9

HI + H2O = H3O+ + I-

hydriodic acid

Question 10

hydrogen halides all react with ammonia gas to form

Answer 10

salts, all of which are white ionic solids

Question 11

the reaction between ammonia gas and hydrogen chloride is

Answer 11

NH3(g) + HCl(g) = NH4Cl(s)