Properties of Period 3 elements and their oxides ( A-level ) Flashcards
1
Q
appearance and physical properties of sodium?
A
Metallic, shiny, conducts electricity
2
Q
reaction of sodium with acid?
A
Na + Acid –> salt + H2
3
Q
reaction of sodium with cold water- equation and observations?
A
Vigorous reaction, floats on water, fizzes and melts due to -ΔH of the reaction. NaOH is pH 13-14
2Na + 2H2O –> 2NaOH + H2
4
Q
A