chemical analysis Flashcards
1
Q
methods for collecting a gas
A
- collection over water
- downward displacement fof water
- upwards displacement of air
2
Q
what are concordant results
A
within 0.2cm3 of each other
3
Q
test for oxygen
A
relights a glowing splint
4
Q
test for carbon dioxide
A
turns limewater cloudy
5
Q
test for hydrogen
A
burns with a pop
6
Q
what is precipitation
A
the reaction of two solutions to form an insoluble salt
