A-Level Chemistry
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A-Level Biology
Tuesday 2 June 2015
2.7.1c: recall the reactions of the oxides of group 2 elements with water and dilute acid, and their hydroxides with dilute acid
OXIDES + WATER
Oxides react with water to form a metal hydroxide
eg. RaO
(s)
+ H
2
O
(l)
→ Ra(OH)
2(s)
OXIDES + DILUTE ACID
Basic oxides react with acids to produce a salt and water
eg. CaO
(s)
+ 2HNO
3(aq)
→ Ca(NO
3
)
2(aq)
+ H
2
O
(l)
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