participate tests

Question 1

lithium

Answer 1

red

Question 2

calcium

Answer 2

brick red /orange

Question 3

K

Answer 3

lilac

Question 4

Na

Answer 4

yellow

Question 5

Cu

Answer 5

green

Question 6

barium

Answer 6

apple green

Question 7

cl- ions with silver ntrate

Answer 7

white

Question 8

br- with silver nitrate

Answer 8

cream

Question 9

I- with silver nitrate

Answer 9

yellow

Question 10

H2 gas

Answer 10

squakey pop when lit splint is placed into test tube

Question 11

O2 gas

Answer 11

glowing splint relights when placed in the open end of the test tube

Question 12

co2 gas

Answer 12

turns lime water milky

Question 13

sulphate ions SO4 2-

Answer 13

barium chloride produces a white participate

Question 14

carbonate ions co3 2-

Answer 14

add an acid and then it wil start to fizzes

Question 15

ammonium ions

Answer 15

add sodium hydroxide
this produces gas that will turn red litmus paper blue

Question 16

test for double bond

Answer 16

add bromine and the colour change will be orange/ brown to colourless

Question 17

test for alcohol

Answer 17

add acidified potassium dechromite
orange to green

Question 18

when you add dilute sodium hydroxide to copper

Answer 18

blue ppt

Question 19

when you add dilute sodium hydroxide to iron 2

Answer 19

green

Question 20

when you add dilute sodium hydroxide to iron 3

Answer 20

rust brown