Question

how would you show that exhaled air has carbondioxide

Answer 1

Hey mate
Here is your answer
----------------------------------------
Take some freshly prepared lime water in a test tube. Take a straw and dip it's one end in the test. Slowly blow at it's one end.
You will observe that the lime water turns milky due to the presence of carbon dioxide in our breath.
This shows the presence of carbon dioxide in the exhaled air.
-------------------------------------------
Hope it helps
Please mark as Brainliest