Simplifyed practical chem

Question 1

how to tes for CO3

Answer 1

1 add hydrochloric acid
2 if carbonate ions present react and turn into Co2
3 co2 will bubble through lime water and make cloudy

Question 2

how to test for Cl,BR,I

Answer 2

1add nitric acid and silver nitrate
2 silver nitrate reacts

Question 3

what color percipitate does Cl make in anion test

Answer 3

white

Question 4

what color percipitate does BR make in anion test

Answer 4

cream

Question 5

what color precipitate does I make in anion test

Answer 5

yellow

Question 6

How to test for No3

Answer 6

add aluminum powder
2 add sodium hydroxide
3 warm solution
4 test with damp litmus paper
5 turn blue if their

Question 7

how to test for So4

Answer 7

add nitric acid
add barium nitrate
if sulfate present white precipitate forms

Question 8

lithium flame test

Answer 8

brick red

Question 9

sodium flame test

Answer 9

yellow orange

Question 10

barium flame test

Answer 10

light green

Question 11

copper flame test

Answer 11

blue green

Question 12

pottasium flame test

Answer 12

lilac

Question 13

calcium in flame test

Answer 13

orange red

Question 14

how to do flame test

Answer 14

1 clean wire loop in HCL
2 hold in fire untill clean
3 when wire clean dip it into metal powder and hold to flane

Question 15

Al in cation test

Answer 15

whtie percipitate in all exept excess NAOH

Question 16

Fe 2+ cation test

Answer 16

green percipitate

Question 17

Fe 3+ cation test

Answer 17

orange percipitate

Question 18

Zinc cation test

Answer 18

white percipitate in all test

Question 19

copper cation test

Answer 19

blue percipitate

Question 20

calcium cation test

Answer 20

white percipitate in NAOH not in NH3

Question 21

ammonia cation test

Answer 21

heat up test with damp red litmus paper if present will turn blue