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In some foam-type fre extinguishers, the...

In some foam-type fre extinguishers, the treactants are `Al_2 (SO_4)_3` (aq) and `NaHCO_3` (aq). T=When the extinguisher is activated, these reactants are allowed to mix producing `Al(OH)_(3(s))` and ` CO_(2(g))`. The ` al (OH)_3 - CO_2` foram extinguishes the fires .
Addition of `Na_2 CO_3` to a solution of an oxide in eater produces `CO_2`. This experiment indicaltes that :

A

the oxide is that of non-metal

B

the oxide is amphoteric

C

the oxide is basic

D

the oxide is neutral

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A
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In some foam-type fre extinguishers, the treactants are Al_2 (SO_4)_3 (aq) and NaHCO_3 (aq). T=When the extinguisher is activated, these reactants are allowed to mix producing Al(OH)_(3(s)) and CO_(2(g)) . The al (OH)_3 - CO_2 foram extinguishes the fires . CO_2 is formed as a result of :

In some foam-type fre extinguishers, the treactants are Al_2 (SO_4)_3 (aq) and NaHCO_3 (aq). T=When the extinguisher is activated, these reactants are allowed to mix producing Al(OH)_(3(s)) and CO_(2(g)) . The al (OH)_3 - CO_2 foram extinguishes the fires . Net ionic reaction of the above chemical chamge is :

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Saline hydrides are known to react with water violently producing fire. Can CO_(2) a well known fire extinguisher, be used in this case? Explain.

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