Edexcel Gcse Chemistry/additional Science - Unit C2: Discovering Chemistry Page 10
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3010
(ii) Sodium carbonate is an ionic compound.
The most likely melting point of sodium
carbonate is
o
A
–85
C
o
b
17
C
o
C
146
C
o
D
851
C
(1 mark)
+
(e) Sodium carbonate contains sodium ions, Na
, and
2–
carbonate ions, CO
.
3
Give the formula for sodium carbonate. (1 mark)
_________________________________________________________
(Total for Question 2 = 8 marks)
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