Q2
with the exception of argon, the period 3 elements form oxides.
a) write the equation to show the reaction of aluminium with oxigen.
b) This reaction occurs very readily. Suggest why saucepans made from aluminium can be safely heated on a gas cooker.
c) for the oxides of sodium , silicon, phosphorous and sulphur, state the physical state at 20 c(degree) and the type of bonding that occurs.
d) what is the equation for the reaction of sulphur dioxide with water?
e) Silicon dioxide and phosphorus (V) oxide are added to separate samples of pure water and each mixture is stirred. Estimate the pH value of each value.
(detailed answers please 🙏🏾 )
4Al+ 3O2 = 2Al2O3.
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