Question

6 Write the balanced equation for the following reactions.
a. Reaction of carbon monoxide with iron oxide

b. Reaction of carbon dioxide with calcium carbonate

c. Reaction of carbon dioxide with water
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Answer 1

Answer:

ANSWER:1 )

the Co2 decomposition occurs in two steps at temperature near 773 K: first wustite reacts with Co2 to form CO and magnetite (Fe304) ; then CO disproportionate to C(gr) and Co2

ANSWER:2)

Carbon dioxide reacts with limewater (a solution of calcium hydroxide, Ca(OH) 2), to form a white precipitate (appears milky) of calcium carbonate, CaCO 3. Adding more carbon dioxide results in the precipitate dissolving to form a colourless solution of calcium hydrogencarbonate.

ANSWER: 3)

In reaction (1.1a), gaseous carbon dioxide is dissolved in water, reacting to form carbonic acid (1.1b). Hydrogen ions dissociate from the carbonic acid, to give bicarbonate (1.1c), and then a carbonate ion (1.1d ), which then reacts with a calcium cation to form calcium carbonate (1.1e).

Answer 2

Answer:

a. Fe2O3+3CO→ 2Fe+3CO2

b. Ca(OH)2+CO2→CaCO3+H2O

c. CO2+H2O

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