Chemical tests Flashcards
1
Q
what is the chemical test for oxygen?
A
lit splint
2
Q
what is the chemical test for carbon dioxide?
A
limewater
3
Q
what is the chemical test for hydrogen?
A
squeaky pop
4
Q
how do you carry out the test for oxygen?
A
light a splint and then blow it out.Then place in a test tube of the gas and if it relights, then oxygen is present
5
Q
how do you carry out the test for carbon dioxide?
A
you should have two test tubes and bubble the gas from one through to the test tube with limewater. if it goes to cloudy the carbon dioxide is present
6
Q
how do you carry out the test for hydrogen?
A
have a lit splint and hold it near a test tube with the gas, if a squeaky pop occurs then hydrogen is present
7
Q
What is the chemical test for water?
A
Add anhydrous copper sulphate
Turns from white top blue
