There are multiple statements that can be true regarding a chemical reaction. It depends on the specific reaction being referred to. However, some commonly true statements about chemical reactions include:
1. Chemical reactions involve the rearrangement of atoms and molecules to form new substances.
2. Chemical reactions occur when reactant molecules collide with sufficient energy and correct orientation.
3. Chemical reactions obey the law of conservation of mass, meaning that the total mass of the reactants is equal to the total mass of the products.
4. Chemical reactions often involve the breaking and formation of chemical bonds.
5. Chemical reactions can be classified as exothermic (releasing heat) or endothermic (absorbing heat) based on the energy changes involved.
6. Chemical reactions are typically represented by balanced chemical equations, which show the stoichiometry and relative amounts of reactants and products.
7. The rate of a chemical reaction can be influenced by factors such as temperature, concentration, pressure, surface area, and catalysts.
8. Chemical reactions can proceed in multiple steps, with intermediate compounds or species formed along the way.
9. Chemical reactions can be reversible, meaning they can proceed in both the forward and reverse direction.
10. Chemical reactions can be classified into various types, such as synthesis, decomposition, combustion, displacement, precipitation, and acid-base reactions.
Which statement is true regarding a chemical reaction?
1 answer