Flashcards
Chemistry- Testing for gases
Flashcards do conjunto (18)
- 1Oxygen
- 2Made by..?Decomposition of hydrogen peroxide using a manganese dioxide catalyst.
- 3Test..?Glowing splint
- 4Result..?Splint relights
- 5Hydrogen
- 6Made by..?Reacting a reactive metal (e.g. magneseum) with acid.
- 7Test..?Lit flame
- 8Result..?gas burns with a squeaky pop (to produce water)
- 9Carbon dioxide
- 10Made by..?A) reaction of a metal carbonate with acid
or..
B) thermal decomposition of a metal carbonate - 11Test..?bubble the gas through limewater
- 12Result..?Lime water turns milky
- 13Ammonia
- 14Test..?Damp red litmus paper
- 15Result..?Litmus paper turns blue
- 16Chlorine
- 17Test..?Damp litmus paper
- 18Result..?Litmus paper is bleached white