reaction of period 3 oxides with water

Question 1

what is the general equation for the reaction of Na2O and water

Answer 1

Na2O + H20 —> 2Na+ + 2OH-

Question 2

give the equation that explains why all metal oxides are basic

Answer 2

O2 - + H2O —> 2OH-

Question 3

write the equation for the reaction of magnesium oxide and water

Answer 3

MgO + H2O —> Mg2+ + 2OH-

Question 4

write an equation for the reaction of SO2 + H2O

Answer 4

SO2 + H2O —> 2H+ + SO3 2- (sulfate IV ion)

Question 5

write an equation for the reaction of SO3 + H20

Answer 5

SO3 + H2O —> 2H+ + SO4 2- (sulfate VI ion)

Question 6

write an equation for the reaction of P4O10 + H2O

Answer 6

P4O10 + H2O —> 12H+ + 4PO4 3- (phosphate V ion)

Question 7

why are metal oxides basic

Answer 7

metal oxides are basic because they have a free oxide ion (O2-)

these ions react with water to produce hydroxide ions

O2- + H2O —> 2OH-

Question 8

what period 3 oxides are insoluble

Answer 8

Al2O3

SiO2