(a) Give two reasons why carbon(IV) oxide is used for extinguishing fire (b) Explain briefly...
CHEMISTRY
WAEC 1990
(a) Give two reasons why carbon(IV) oxide is used for extinguishing fire
(b) Explain briefly the water softening action of cation exchange resins.
Explanation
(a) The non-flamable nature and the high density of carbon (IV) oxkfe makes it suitable for extinguishing fires.
(b) The cation exchange resin is a complex substance which has its cation part capable of being replaced by the calcium ion (Ca\(^{2+}\)) from the hard water run over the resin. The water running out of the resin column is the softened water
Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *