The burning of natural gas in a gas stove is an example of a combustion reaction. Natural gas is mostly methane, CH4. The O2 gas comes from the air. Which of these is the correct chemical reaction for this? A) H2CO3 + H2O → CO2 B) CH4 (g) → CO2 (g) + 2 H2O (g) C) CH4 (g) + O2 (g)→ CO2 (g) + H2O (g) D) CH4 (g) + 2 O2 (g) → CO2 (g) + 2 H2O (g)

When balancing a chemical equation:

Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)

One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .