Question
Define a chemical reaction
Answers
GPT-4o mini
A chemical reaction is a process in which one or more substances (reactants) undergo a transformation to form one or more different substances (products). This transformation involves breaking and forming chemical bonds, resulting in changes to the molecular structure of the reactants and products. Chemical reactions can be classified into various types, such as synthesis, decomposition, single replacement, double replacement, and combustion.
During a chemical reaction, energy changes may also occur, often in the form of heat, light, or sound. The law of conservation of mass states that in a closed system, the total mass of the reactants must equal the total mass of the products, meaning that atoms are neither created nor destroyed in the process. Examples of chemical reactions include rusting of iron, burning of gasoline, and the fermentation of sugars.
During a chemical reaction, energy changes may also occur, often in the form of heat, light, or sound. The law of conservation of mass states that in a closed system, the total mass of the reactants must equal the total mass of the products, meaning that atoms are neither created nor destroyed in the process. Examples of chemical reactions include rusting of iron, burning of gasoline, and the fermentation of sugars.