Anions

Question 1

What anion is found by adding dilute acid and effervescence (CO2) are produced?

Answer 1

Carbonates (CO3 , 2-)

Question 2

How do you find chlorides in a solution? (Cl-)

Answer 2

Acidify with dilute nitric acid, then add aqueous silver nitrate. White ppt is found

Question 3

What anion is found by acidifying with dilute nitric acid and then adding aqueous silver nitrate and cream ppt appears?

Answer 3

Bromide (in solution) Br-

Question 4

With what test do you find nitrates? (NO3)

Answer 4

Adding aqueous sodium hydroxide, then aluminium foil; warm carefully
Ammonia produced- turns damp red litmus paper blue (alkaline)

Question 5

What substance is this:

Acidify, then add aqueous barium nitrate (or chloride but it is important for it to be barium), white ppt is produced

Answer 5

Sulfate (SO4, 2-)

[in solution]