Key Bits Of Info Flashcards
1
Q
Why is litmus paper not suitable to detect ph of a solution ?
A
It only shows if the solution is acid or alkali but doesn’t show HOW acidic or alkaline the solution is
2
Q
What do you use to measure liquid out?
A
Pipette
3
Q
Why is graphene a good conductor of electrical current?
A
Carbon has 4 outer shell electrons and uses 3 to bond with other carbon atoms, leaving a delocalised electron
4
Q
Why is aluminium extracted using electrolysis?
A
It’s very high in the reactivity series so is very reactive, meaning that it requires alot of energy to remove oxygen.
5
Q
What did mendeleevs table not have?
A
Group 0 ( noble gases
6
Q
What is a isotope ?
A
Same number of protons different number of neutrons and different atomic mass but same atomic structure
