Period 3 Elements Flashcards
1
Q
Sodium reaction with water
A
2Na + 2 H2O = 2NaOH + H2
Fizzes
Yellow orange flame
2
Q
Sodium reaction with oxygen
A
4Na + O2 = 2 Na2O
Yellow orange flame
white powder
3
Q
Magnesium reaction with water vs steam
A
Steam: Mg + H2O = MgO + H2
white flame + white powder
Water: Mg + 2 H2O = Mg(OH)2 + H2
very slow reaction
4
Q
Magnesium reaction with oxygen
A
2Mg + O2 = 2MgO
White flame
White powder
5
Q
Aluminium reaction with oxygen
A
4 Al + 3 O2 = 2 Al2O3
white flame
white powder
6
Q
Silicon reaction with oxygen
A
Si + O2 = SiO2
White flame
White powder
7
Q
Phosphorus reaction with oxygen
A
P4 + 5 O2 = P4O10
Very bright white flame
white powder
8
Q
Sulfur reaction with oxygen
A
S + O2 = SO2
Blue flame
choking gas
9
Q
Chlorine reaction with water
A
Cl2 + H2O = HCl + HOCl
(Reversible reaction)
Pale green solution
