Analysing substances Flashcards
What colour flame does a lithium compound result in?
Crimson
What colour flame does a sodium compound result in?
Yellow
What colour flame does a potassium compound result in?
Lilac
What colour flame does a calcium compound result in?
Red
What colour flame does barium compound result in?
Green
What colour precipitates do aluminium, calcium and magnesium ions with sodium hydroxide solution?
White
Which precipitates out of aluminium, calcium and magnesium dissolve in excess sodium hydroxide solution?
Aluminium hydroxide
What colour precipitate does copper form with sodium hydroxide?
Blue
What colour precipitate does iron ll form with sodium hydroxide?
Green
What colour precipitate does iron lll form with sodium hydroxide?
Brown
How do you tell if carbon dioxide is present in a reaction?
It turns lime water cloudy
What colour precipitate is silver chloride?
White
What colour precipitate is silver bromide?
Cream
What colour precipitate is silver iodide?
Yellow
