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

One way to confirm if a gas is carbon dioxide is to use a pH indicator solution. Carbon dioxide reacts with water to form carbonic acid, which lowers the pH of the solution. By testing the gas with a pH indicator and observing a decrease in pH, one can infer the presence of carbon dioxide. Additionally, specialized sensors or detectors can be used to specifically identify carbon dioxide based on its unique infrared absorption spectrum.

Answer 5

if you breathe in carbon dioxide - you die

Answer 6

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

Answer 7

Infrared spectroscopy