What is the test for CO2 gas? Describe the overall reaction that takes place in the instance of a positive result and write its reaction equation.

The gas is passed through a container of Lime-water, if the Lime-water goes cloudy it means that the gas is CO2. The Carbon dioxide reacts with Calcium hydroxide to produce a Calcium carbonate precipitate and water:CO2 + Ca(OH)2 -----> CaCO3 + H2O

AO
Answered by Aarran O. Chemistry tutor

1966 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

Describe how elements of the periodic table are arranged relating to their atomic structure. (6 marks)


Calculate the relative molecular mass of CaCO3. (relative atomic mass (Ar): C= 12, Ca= 40, O= 16)


How does the reactivity of group 7 elements (the halogens) change down the group and why? (A Level)


Balance the chemical equation: AgI + Na2S → Ag2S + NaI


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences