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Home Q & A Board Biology-Related Homework Help Cell Biology
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tremack tremack
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11 years ago
How would you quickly determine whether a cleaning agent contained sodium
carbonate or sodium phosphate? Clearly, hitting the agent with acid will result in bubbles only
with sodium carbonate. Na2CO3(s) + 2H (aq) ¸ H2O + CO2(g) + Na (aq)
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#1
11 years ago
OK.  You've answered your own question.  Sodium carbonate and an acid will generate CO2 gas, and it will be visible as bubbles.  With Na3PO4, no bubbles.

Your equation is a bit sketchy.
Na2CO3(s) + HCl(aq) Rightwards Arrow NaCl(aq) + CO2(g) + H2O(l)
net ionic:
Na2CO3(s) + H+ Rightwards Arrow Na+ + CO2(g) + H2O(l)
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