Chemical Reactions and Related Concepts

Flashcards covering key concepts related to chemical reactions, including definitions of reactants, products, chemical equations, types of reactions, and indicators of chemical changes.

A chemical reaction is a process in which some substances change into __.

different substances.

Reactants are __ that cause a chemical reaction.

substances.

Products are substances that are __ in a reaction.

produced.

Chemical equations represent a chemical reaction by displaying the __ and products using chemical formulas.

reactants.

In a chemical reaction, the atoms of the reactants and products are __ during the reaction.

rearranged.

Energy is used to break bonds in reactants, and energy is __ when new bonds form in products.

released.

During an __ reaction, more energy is used to break bonds in reactants than is released when bonds form in products.

endothermic.

During an __ reaction, more energy is released when bonds form in products than is used to break bonds in reactants.

exothermic.

A change in __ can indicate a chemical reaction, such as hair color change due to dyes.

color.

The formation of gas during a reaction can be indicated by the release of gas __.

bubbles.

The solid that settles out of a liquid solution during a reaction is called a __.

precipitate.