Asked by michelle

state the chemical reagent that is used to demonstrate that expired air contains carbon dioxide

Answers

Answered by Pathney
It is proven by the colour of the limewater that CO2 is present in the expired/exhaled air after air is blown in the beaker
Answered by Belinda
Yes ,I agree with Pathneythe lime water will turn milky with the presence of the expired air
Carbondioxide
Answered by Belinda
And the chemical reaction for the expirement showing how expired air contains carbon dioxide is

Ca(0H)2+Co2-CaCo3+H20

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