Paper 1 Flashcards
1
Q
Which ion makes carbon dioxide solution acidic?
A
Hydrogen
2
Q
Name an indicator that can be used to test the acidity of a solution.
Give the results.
A
Universal indicator
It would turn red
3
Q
What is the order of discovery of the proton, neutron and electron?
A
Electron - proton - neutron
4
Q
A bromine atom can be represented as
81
35 Br
What is the number of electrons in a bromine ion?
A
Its in group 7 so will gain 1 electron
36
