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JAMB - Chemistry (2002 - No. 30)
Ordinary glass is manufactured from silica, CaCO3 and
Na
2
CO
3
K
2
CO
3
K
2
SO
4
NaHCO
3
解释
Ordinary glass is made from sand(silica), limestone(CaCO\(_3\) and soda ash, Na\(_2\)CO\(_3\).
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