Period 3 Oxides Flashcards

Flashcards about Period 3 Oxides

What is the structure and reaction of Na2O with water?

Ionic, dissolves in water to form NaOH(aq). Na2O + H2O -> 2NaOH(aq)

What is the reaction of Na2O with acids?

Na2O + 2 H+ -> 2Na+ + H2O

What is the nature of Na2O?

Basic

What is the structure and reaction of MgO with water?

Ionic (higher melting point than Na2O), slightly soluble in water to form Mg(OH)2(aq). MgO + H2O -> Mg(OH)2(aq)

What is the reaction of MgO with acids?

MgO + 2H+ -> Mg2+ + H2O

What is the nature of MgO?

Basic

What is the structure and reaction of Al2O3 with acids and alkalis?

Ionic (some covalent character), Insoluble. Al2O3 + 6H+ -> 2Al3+ + 3H2O. Al2O3 + 2OH- + 3H2O -> 2 Al(OH)4 -

What is the nature of Al2O3?

Amphoteric

What is the structure and reaction of SiO2 with alkalis? (conditions)

Giant covalent, Insoluble. SiO2 + 2OH- -> SiO3 2- + H2O (hot, concentrated NaOH)

What is the nature of SiO2?

Acidic

What is the structure and reaction of P4O10 with water?

Simple molecular, reacts violently with water to form H3PO4. P4O10 + 6H2O -> 4H3PO4

What is the reaction of P4O10 with alkalis?

P4O10 + 12OH- -> 4PO4 3- + 6 H2O

What is the nature of P4O10?

Acidic

What is the structure and reaction of SO2 with water?

Simple molecular, dissolves in water to form H2SO3. SO2 + H2O -> H2SO3

What is the reaction of SO2 with alkalis?

SO2 + 2OH- -> SO3 2- + H2O

What is the nature of SO2?

Acidic

What is the structure and reaction of SO3 with water?

Simple molecular, reacts violently with water to form H2SO4. SO3 + H2O -> H2SO4

What is the reaction of SO3 with alkalis?

SO3 + 2OH- -> SO4 2- + H2O

What is the nature of SO3?

Acidic