paper 3 2017 Flashcards
1
Q
why are bond angles larger in ice than water?
A
Ice contains hydrogen bonds
Water contains two lone pairs and two bonded pairs
lone pairs are more repulsive than bonded pairs.
2
Q
why shouldn’t methane be released into the atmosphere?
A
contributes to global warming
3
Q
the formula for enthalpy change
and enthalpy change units
A
energy released/ moles
KJmol^-1
