Chemical Reactions

A chemical reaction is a process in which substances (reactants) undergo a transformation to form new substances (products) through the rearrangement of atoms.

No, according to the law of conservation of mass, atoms cannot be created or destroyed in a chemical reaction; they can only be rearranged.

A chemical formula is a symbolic representation of the composition of a substance, indicating the types and numbers of atoms present.

At the atomic level, synthetic and natural medicines can have the same molecular structure; the difference lies in their source and production methods.

Reactants are the starting substances that undergo change during a chemical reaction.

Products are the substances that are formed as a result of a chemical reaction.

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Catalysts are substances that speed up chemical reactions without being consumed in the process.

An exothermic reaction is a chemical reaction that releases energy, usually in the form of heat.

An endothermic reaction is a chemical reaction that absorbs energy from its surroundings.