9.2 experiment

Question 1

acid + metal →

Answer 1

salt + hydrogen

Question 2

acid + insoluble base →

Answer 2

salt + water

Question 3

acid + insoluble carbonate →

Answer 3

salt + water + carbon dioxide

Question 4

alkali + ammonium salt →

Answer 4

salt + ammonia gas + water

Question 5

observations and how to test for carbon dioxide

Answer 5

effervescence observed when solution _ was added into solution _
carbon dioxide gas caused white ppt to form when bubbled through a delivery tube to limewater

Question 6

observations and how to test for hydrogen gas

Answer 6

effervescence observed when solution _ was added into solution _
gas produced extinguishes a lighted splint with a ‘pop’ sound

Question 7

observations and how to test for ammonia gas

Answer 7

when the solution was heat, the gas produced turned red litmus paper blue

Question 8

when is a lighted splint used to test for a gas

Answer 8

when the reaction is between an acid and metal

Question 9

when do you use moist red litmus paper

Answer 9

to test for ammonia gas when reaction takes place between a base and ammonium

Question 10

when do you

Question 11

when do you use limewater

Answer 11

to test for carbon dioxide when reaction takes place between acid and carbonate