Further Periodicity Flashcards
2Na(s) + 2H₂O(l)
2NaOH(aq) + H₂(g)
Mg(s) + 2H₂O(l) →
Mg(OH)₂(aq) + H₂(g)
2Al(s) + 6H₂O(l) →
2Al(OH)₃(aq) + 3H₂(g
Cl₂(g) + H₂O(l) →
HCl(aq) + HOCl(aq)
4Na(s) + O₂(g)->
2Na₂O(s)
2Mg(s) + O₂(g)
→ 2MgO(s)
4Al(s) + 3O₂(g) →
2Al₂O₃(s)
Si(s) + O₂(g) →
SiO₂(s)
4P(s) + 5O₂(g) →
P₄O₁₀(s)
S(s) + O₂(g) →
SO₂(g)
What colour is Na₂O(s)?
Orange
What colour is 2MgO(s)?
White
What colour is 2Al₂O₃(s)?
White
What colour is SiO₂(s)?
White
What colour is P₄O₁₀(s)?
White
What colour is SO₂(g)?
Blue
Na₂O(s) + H₂O(l) →
2NaOH(aq)
MgO(s) + H₂O(l) →
Mg(OH)₂(aq)
P₄O₁₀(s) + 6H₂O(l) →
4H₃PO₄(aq)
SO₂(g) + H₂O(l) →
H₂SO₃(aq)
SO₃(g) + H₂O(l) →
H₂SO₄(aq)
Why is silicon dioxide insoluble?
Silicon dioxide (SiO₂) has a giant covalent network structure, strong Si-O covalent bonds form a 3D network and the energy required to break these bonds is much higher than the energy released by hydration, making it insoluble in water.
Why is Aluminium Oxide insoluble?
Aluminium oxide (Al₂O₃) has a high melting point and strong ionic bonding, the Al³⁺ and O²⁻ ions are held together by strong electrostatic forces and the lattice energy is greater than the hydration energy, preventing dissolution in water.
Na₂O(s) + 2HCl(aq) →
2NaCl(aq) + H₂O(l)
MgO(s) + H₂SO₄(aq) →
MgSO₄(aq) + H₂O(l)
Al₂O₃(s) + 3H₂SO₄(aq) →
Al₂(SO₄)₃(aq) + 3H₂O(l)
Al₂O₃(s) + 2NaOH(aq) + 3H₂O(l) →
2NaAl(OH)₄(aq)
SiO₂(s) + 2NaOH(aq) →
Na₂SiO₃(aq) + H₂O(l)
3NaOH(aq) + H₃PO₄(aq) →
Na₃PO₄(aq) + 3H₂O(l)
SO₂(g) + 2NaOH(aq) →
Na₂SO₃(aq) + H₂O(l)
NaHSO₃(aq) + NaOH(aq) →
Na₂SO3(aq) + H₂O(l)
