Chemistry Unit Three - Chemical Analysis

This cross word allows you to revise the results of forming precipitates, flame tests and testing for negative ions in a fun way.

HideShow resource information
Which positive ion forms a blue precipitate when sodium hydroxide is added?
Copper
1 of 20
What colour precipitate does iron (II) form what sodium hydroxide is added?
Green
2 of 20
What colour precipitate does iron (III) form what sodium hydroxide is added?
Reddish-brown
3 of 20
What colour precipitate do magnesium, calcium and aluminium form what sodium hydroxide is added?
White
4 of 20
Which positive ion's precipitate is soluble in excess sodium hydroxide?
Aluminium
5 of 20
You use a flame test to determine which precipitate is magnesium and which is calcium. What colour would the flame turn if it was calcium?
Red
6 of 20
What colour does a flame go if lithium is added during a flame test?
Crimson
7 of 20
What colour does a flame go if sodium is added during a flame test?
Yellow
8 of 20
What colour does a flame go if potassium is added during a flame test?
Lilac
9 of 20
What colour does a flame go if barium is added during a flame test?
Green
10 of 20
When testing for carbonates (negative ions) what dilute solution do you add?
Acid
11 of 20
Which gas is produced which tells you if a carbonate ion (a negative ion) is present in a compound?
Carbon dioxide
12 of 20
If carbonate ions (negative ions) are present what colour precipitate is formed?
White
13 of 20
What solution do you add when testing for halide ions (negative ions)?
Silver nitrate
14 of 20
When testing for halide ions (negative ions) which type of ion forms a white precipitate if present?
Silver chloride
15 of 20
When testing for halide ions (negative ions) if silver bromide is present what colour precipitate will form?
Cream
16 of 20
When testing for halide ions (negative ions) if silver iodide is present what colour precipitate will form?
Yellow
17 of 20
When testing for sulphate ions (negative ions) what type of acid must be used?
Hydrochloric
18 of 20
Once the acid had been added when testing for sulphate ions (negative ions) what must be added next?
Barium chloride
19 of 20
What colour precipitate is formed if sulphate ions (negative ions) are present?
White
20 of 20

Other cards in this set

Card 2

Front

What colour precipitate does iron (II) form what sodium hydroxide is added?

Back

Green

Card 3

Front

What colour precipitate does iron (III) form what sodium hydroxide is added?

Back

Preview of the front of card 3

Card 4

Front

What colour precipitate do magnesium, calcium and aluminium form what sodium hydroxide is added?

Back

Preview of the front of card 4

Card 5

Front

Which positive ion's precipitate is soluble in excess sodium hydroxide?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Analysing substances resources »