Chemistry - tests for cations, anions, water and more

What colour flame does Lithium burn with?

You can test for sulphates with Hydrochloric Acid and Silver Nitrate

You add Sodium Hydroxide (NaOH) to an unknown solution and a reddish-brown precipitate is formed. What metal ion was in the solution?

To test for Oxygen, you put a glowing splint into a test tube of Oxygen and it relights the splint

Ammonia turns damp blue litmus paper blue

You have an unknown sample. When you do the flame test, you get a lilac flame and when you add Nitric Acid and Silver Nitrate to it, a cream precipitate is formed. What is the name of the sample?

You have an unknown sample. When you add Sodium Hydroxide and Ammonia, a blue precipitate is formed and when you add Hydrochloric Acid and Barium Chloride to it, a white precipitate is formed. What is the name of the sample?

Before doing a flame test, you must dip the loop of platinum wire that you will use in Nitric Acid

To test for Hydrogen, you...

Hydrochloric Acid can cause some samples to release a gas, which turns limewater cloudy. What is the anion in the sample?

Cations are negative ions

If you add water to Anhydrous Copper (II) Sulphate, what colour do the crystals turn?

A bromide ion forms a yellow precipitate when you add Nitric acid and Silver Nitrate

Chlorine bleaches damp litmus paper, turning it white

A flame test is conducted to identify an unknown cation. It turns out to be Calcium. What colour was the flame?