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Carbonates and bicarbonates, thermal stability
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sb121
On heating solid sodium hydrogencarbonate, the products are:
A
Na
X
2
O
,
CO
X
2
and
H
X
2
O
B
NaOH
and
CO
X
2
C
Na
X
2
CO
X
3
,
CO
X
2
and
H
X
2
O
D
Na
X
2
CO
X
3
and
H
X
2
only
Answer: C
2
NaHCO
X
3
Na
X
2
CO
X
3
+
CO
X
2
+
H
X
2
O
. Sodium carbonate is stable and remains as the residue while carbon dioxide and steam escape.
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