C10 Flashcards
1
Q
What can be used to identify pure elements
A
Dependent on their melting and boiling points
2
Q
Which of pure substances and mixtures have specific fixed points?
A
Pure subatnces
3
Q
How can scientists analyse unkown subastances inb a solution
A
By using paper chromatography
4
Q
What burns rapidly with a ‘pop’ when you apply a lightened splint
A
Hydrogen
5
Q
What relights a glowing splint
A
Oxygen gas
6
Q
What turns lime water cloudy?
A
Carbon dioxide gas
7
Q
Ehat bleaches damp blue litmus paper white
A
Chlorine
