Carbon (IV) oxide
Carbon (IV) oxide is normally in gaseous state at room temperature. It has been said that we inhale oxygen and exhale carbon (IV) oxide. Carbon (IV) oxide has a chemical formula of CO2.
How can we produce carbon (IV) oxide?
Carbon (IV) oxide is produced in the laboratory by the action of dilute acid on marble chip such as calcium trioxocarbonate (IV).
2HCL + CaCO3 ------> CaCl2 + H2O + CO2
CO2 can be obtained in a large scale by the process of fermenting sugar.
How does carbon (IV) oxide looks like?
It is a colourless gas and odourless gas with a sharp refreshing taste. It is soluble in water forming an acid, it is also denser than air.
How can we test for the presence of carbon (IV) oxide?
Note, carbon (iv) oxide turns lime water milky. Hence, when the unknown gas is added to lime water and the lime water turns milky, it is therefore carbon (IV) oxide.
What are the uses of carbon (IV) oxide?
It is used as a fire extinguisher. I meant it is used to put fire off, because it is heavier than air and doesn't support combustion. It is used in preserving drinks. Solid carbon (IV) oxide known as dry ice is used as a refrigerant for perishable goods and it is also used as a coolant gas in nuclear reactors.
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