7. You will observe a cloudy solution due to the formation of solid BaSO4.
8. You will observe gas bubbles due to the CO2 gas formed.
Describe what do you expect to observe when the following reactions take place (3 points each):
Example.
2 NaHCO3(aq) + CuCl2(aq) CuCO3(s) + 2 NaCl(aq) + H2O(l) + CO2(g)
When two transparent (clear) solutions were mixed, the resulting liquid became
cloudy (because an insoluble solid has formed) and bubbles were seen as well
(because a gas has formed).
Note 1. (aq) = solution = transparent liquid;
(s) when (aq) is also in the equation = cloudy liquid,
(g) when (aq) is also in the equation = bubbles in the liquid.
Note 2. You cannot tell anything about the colors since this information is not included in the reaction equation.
7. FeSO4(aq) + Ba(NO3)2(aq) → BaSO4(s) + Fe(NO3)2(aq)
8. NaHCO3(aq) + HCl(aq) →NaCl(aq) + H2O(l) + CO2(g)
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