Mistakes Of Pp Flashcards
1
Q
Why solid lead(II) bromide doesn’t conduct electricity?
A
As no free moving ions
2
Q
Observation when li added to water
A
Gets smaller and disappear
Moves
Bubbles of hydrogen gas
3
Q
Explain why potassium more reactive than lithium
A
As more energy levels
Less attraction between outer shell
So electron in outershell is more easily lost
4
Q
Explain why increasing pressure increase Rate of reaction
A
As more collisions between molecules and walls per unit time,molecules closer together
5
Q
Give 2 features of reaction in dynamic equilibrium
A
Rate of forward reaction equal rate of backward reaction
Concentration of reactants and products remain constant
6
Q
Describe chemical test for carboxylic acid
A
Add hydrogen carbonate
Bubbles of carbon dioxide
