chemistry Flashcards
chem questions (5 cards)
1
Q
explain what is meant by the term homologous series
A
family of compounds with the same general formula with similar chemical properties
2
Q
describe what is meant by an endothermic reaction
A
thermal energy is changed to into chemical energy
so thermal energy is absorbed and removed from the surrounding so temperature decreases
3
Q
explain what happens to bromine molecules when liquid bromine boils
A
distance between bromine molecules increase and they move further apart because kinetic energy is used to break and overcome the intermolecular forces between them
4
Q
describe how the motions of the molecules in solid and liquid compare
A
slower in solid due to less kinetic energy
5
Q
state the meaning of diatomic
A
two atoms bonded
