Uncorrect question !
A gas is a chemical compound.
A chemical reaction is a process of chemical interaction between several substances (compounds).
Burning hydrocarbons such as oil or natural gas, this is a chemical reaction with the oxygen in the air
A reaction that emmits heat is called an exothermic reaction .
A gas released during a chemical reaction is a chemical change.
A Combustion reaction. It usually happens between a gas and oxygen. The products are CO2 and H2O.
This is a sign of a chemical reaction.
A gas is evolved as a product of a chemical reaction.
A gas can be a reactant in a chemical reaction. For example, iron and the gas oxygen react to form rust, which is iron oxide.
A chemical reaction, by definition, does not require air unless one of the constituents of the reaction is intended to be supplied by it.
Combustion is a hemical reaction.
no is not a chemical reaction
Your car runs on a chemical reaction because the combustion of gas is actually a chemical reaction. As the fuel turns to a spark or flame, the reaction becomes chemical
A chemical reaction in a hot air balloon can be when the propane is heated up. That is a chemical reaction because something has heated up.