So, combustion is a chemical reaction when a fuel is burned to release ... Combustion reactions can be described using word and symbol equations. The fuel used in gas barbeques is butane.

A balloon filled with helium and one filled with hydrogen are ignited. Hydrogen provides a loud explosion and flame. He(g) + O 2 (g) → N.R. Light the candle on the end of the yardstick and lower the ...

where Q is the heat of combustion. In this reaction, atoms are conserved and the equation balances for each of the species. The reaction is a stoichiometric reaction, and the coefficients multiplying ...

identifying chemical reactions. Skills: Students should be comfortable converting between mass and amounts using molar masses, performing mass balances and determining the stoichiometric ratios for a ...