How do you know whether not a gas is carbon dioxide?

Answer 1

bubble the gas through lime water(Ca(OH)2)and if there is carbon dioxide a white precipitate will form. Here is the reaction [where the CaCO3(s) causes the white precipitate]: Ca(OH)2(aq) +CO2(g) --> CaCO3(s) +H2O(l)

Answer 2

That depends on the percentage of Carbon Dioxide, if there is a lot then you won't be able to light a match / lighter.

Lower (but higher than normal amounts) may give you a slight headache.

And you can of course use planes, cares and trains etc with hard and software mounted on them which measures air quality.

Answer 3

I'm in year 10 triple science award at school and no this so ill try and make it simple for you.

1- get 2 testubes and fill one halfway with lime water

2- put your gas in the other testube and put the bung/cork in (catch it in tube depending on upwards/downwards deliver or over water)

3- (the cork should have a glass pipe that dips all the way down into the limewater in one tube and just in the gas tube.

4 - if there is carbon dioxide present, when it travels from its tube into the other there will be a chemical reaction changing the limewater from clear to a milky colour.

Answer 4

if you breathe in carbon dioxide - you die

Answer 5

its takes up more space that it needs, were as liquid takes up exactly the amount of space it needs.

Answer 6

Infrared spectroscopy