Common Substance Tests

Question 1

Hydrogen H2(g)

Answer 1

Lit splint -> squeaky pop

Question 2

Oxygen O2(g)

Answer 2

Glowing splint -> relights

Question 3

Water H2O (l) 
How pure it is

Answer 3

Measure MP = 0degrees

BP = 100degrees

Question 4

Water H2O (l)

Answer 4

1) Anydrous CuSO4 (s)
White -> blue

2) anydrous CoCl2 (s)
Blue -> pink

Question 5

Carbon dioxide CO2 (g)

Answer 5

Limewater -> cloudy

Question 6

Chlorine (g)

Answer 6

Damp blue litmus -> white

Question 7

Ammonia NH3 (g)

Answer 7

Damp red litmus -> blue