testing for positive and negative ions

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what colour is lithium ion in a flame test
crimson
1 of 18
what colour is barium ion in a flame test
green
2 of 18
what colour is sodium ion in a flame test
yellow
3 of 18
what colour is potassium ion in a flame test
lilac
4 of 18
what colour is calcium in a flame test
red
5 of 18
what forms when you add sodium hydroxide to metal ions which are soluble in water
coloured metal hydroxide precipitate is produced
6 of 18
what colour does iron (111) produce when sodium hydroxide is added
brown
7 of 18
what colour does iron (11) produce when sodium hydroxide is added?
green
8 of 18
what colour does copper (11) produce when sodium hydroxide is added
blue
9 of 18
what colour does aluminium, magnesium and calcium form when sodium hydorxide is added
white
10 of 18
how can you tell which is aluminium
add excess sodium hydroxide and alluminium will dissolve completley
11 of 18
how can you tell between magnesium and calcium ions after sodium hydroxide has been added
do a flame test calcium will go red
12 of 18
describe the test for negative carbonate ions
add dilute acid and carbon dioxide should form which will cause fizzing. then bubble the gas through limewater and if it goes cloudly carbon dioxide and therefore carbonate ions are present
13 of 18
describe the test for a halide ion
add dilute nitric acid then add dilute silver nitrate solution and a coloured precipitate should be formed
14 of 18
what colour precipitate will chloride ion form when nitric acid and silver nitrate solution are added?
white precipitate
15 of 18
what colour will bromide ion form
cream precipitate
16 of 18
what colour will iodide ion form
yellow precipitate
17 of 18
describe the test for sulfate ions
add dilute hydrochloric acid or nitric acid then add dilute barium chloride solution if sulfate ions are present a white precipitate will form
18 of 18

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Card 2

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what colour is barium ion in a flame test

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green

Card 3

Front

what colour is sodium ion in a flame test

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Card 4

Front

what colour is potassium ion in a flame test

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Card 5

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what colour is calcium in a flame test

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