Chemistry - Mark Scheme Answers Flashcards
1
Q
“describe bonding in metallic element..”
A
Positive ions with sea of delocalized electrons.
Attraction between positive ions and electrons
2
Q
“describe how metallic compounds conduct electricity…”
A
electrons flow / mobile electrons
3
Q
explain why ionic compound conducts electricity when molten
A
ions can move / are mobile / can flow
4
Q
(in titration) state how you know that a suitable number of results have been obtained
A
atleast two results are within 0.2cm3 or less
