"Chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms, with no change to the nuclei."
The process by which one or more substances are transformed into a new substance with different chemical and physical properties.
Chemical Equations: Represents the reactants and products of a chemical reaction in a balanced equation form.
Reactants and Products: Learning about the reactants and products of an chemical reaction to understand what happens during the reaction.
Chemical Reactions and Energy: Exothermic and Endothermic reactions where the release or absorption of energy is involved.
Physical and Chemical Changes: Understanding the difference between physical and chemical changes, how they relate to chemical reactions.
Types of Chemical Reactions: Understanding the different types of chemical reactions: synthesis, decomposition, combustion, single and double displacement, and acid-base reactions.
Stoichiometry: The quantitative relationships between reactants and products in balanced chemical equations.
Catalysts and Inhibitors: A substance that speeds up or slows down a chemical reaction.
Reaction Rates: The rate at which a chemical reaction takes place and factors affecting it.
Equilibrium: Where forward and reverse reaction rates balance each other out.
Reaction Mechanisms: The step-by-step sequence of reactions that make a multi-step reaction.
Redox Reactions: Reactions where the oxidation and the reduction process occurs.
Applications of Chemical Reactions: Understanding how chemical reactions are used in various industries and applications.
Balancing Equations: Balancing the chemical equation is a process to balance the mass of reactants and products.
Reaction Thermodynamics: Understanding the thermodynamics of reactions through concepts like enthalpy, Gibbs free energy, and entropy.
Kinetics: Understanding the rate and mechanism in which a chemical reaction occurs.
Chemical Equilibrium: Understanding what equilibrium is and how it relates to chemical reactions.
Acid-Base Reactions: Reacting acids and bases to make salt and water.
Combustion Reactions: A reaction that involves oxygen and heat.
Electrolysis: Breaking down a compound into its constituent elements through the use of an electric current.
Enthalpy and Entropy: Understanding the concept of energy in chemical reactions, and how it relates to entropy.
Half Reactions: Representing the redox reactions in terms of half reactions.
Inorganic Reactions: Understanding the chemical reactions that happen between non-organic substances.
Organic Reactions: Understanding the chemical reactions that happen in organic compounds.
Photochemical Reactions: A reaction that occurs through the absorption of light.
Polymerization and Depolymerization: A reaction where small molecules combine to form a polymer or the reverse process of breaking down a polymer into its constituent units.
Combustion reaction: This type of reaction involves the burning of a substance in the presence of oxygen to produce energy in the form of heat and light.
Synthesis reaction: Also known as a combination reaction, this type of reaction involves two or more substances combining to form a new compound.
Decomposition reaction: As the name suggests, this type of reaction involves the breakdown of a compound into two or more simpler substances.
Single displacement reaction: This type of reaction involves an element replacing another in a compound to form a new compound and a new element.
Double displacement reaction: In this type of reaction, two compounds exchange ions to form two new compounds.
Acid-base reaction: Known as a neutralization reaction, this type of reaction involves the combination of an acid and a base to form a salt and water.
Redox reaction: This is a type of reaction that involves the transfer of electrons between two substances. It can be either an oxidation or a reduction reaction.
Precipitation reaction: This type of reaction involves the formation of a solid (precipitate) when two solutions are combined.
Photochemical reaction: This type of reaction occurs when light is used to initiate a chemical reaction.
Thermal decomposition reaction: This type of reaction occurs when heat is used to decompose a compound into its constituent elements.
Electrolysis reaction: This is a type of redox reaction that occurs in an electrolytic cell where an electric current is used to drive the reaction.
Metathesis reaction: Also known as a double replacement reaction, this type of reaction involves the exchange of ions between two compounds to form two new compounds.
Isomerization reaction: This type of reaction involves the rearrangement of atoms or functional groups within a molecule to form a new isomer.
Addition reaction: This type of reaction involves the addition of one or more atoms, ions or molecules to an unsaturated molecule to form a saturated molecule.
Elimination reaction: This type of reaction involves the removal of a molecule, often a proton or a small molecule, from a larger molecule or a compound.
"Nuclear chemistry is a sub-discipline of chemistry that involves the chemical reactions of unstable and radioactive elements where both electronic and nuclear changes can occur."
"The substance (or substances) initially involved in a chemical reaction are called reactants or reagents."
"Chemical reactions yield one or more products, which usually have properties different from the reactants."
"Reactions often consist of a sequence of individual sub-steps, the so-called elementary reactions, and the information on the precise course of action is part of the reaction mechanism."
"Chemical reactions are described with chemical equations, which symbolically present the starting materials, end products, and sometimes intermediate products and reaction conditions."
"Typically, reaction rates increase with increasing temperature because there is more thermal energy available to reach the activation energy necessary for breaking bonds between atoms."
"A reaction may be classified as redox in which oxidation and reduction occur or non-redox in which there is no oxidation and reduction occurring."
"Most simple redox reactions may be classified as a combination, decomposition, or single displacement reaction."
"Different chemical reactions are used during chemical synthesis in order to obtain the desired product."
"In biochemistry, a consecutive series of chemical reactions form metabolic pathways, where the product of one reaction is the reactant of the next reaction."
"These reactions are often catalyzed by protein enzymes. Enzymes increase the rates of biochemical reactions."
"Metabolic syntheses and decompositions impossible under ordinary conditions can occur at the temperature and concentrations present within a cell."
"The general concept of a chemical reaction has been extended to reactions between entities smaller than atoms, including nuclear reactions, radioactive decays, and reactions between elementary particles."
"Nuclear chemistry involves the chemical reactions of unstable and radioactive elements where both electronic and nuclear changes can occur."
"Chemical equations symbolically present the starting materials, end products, and sometimes intermediate products and reaction conditions."
"Chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms, with no change to the nuclei."
"Reaction rates increase with increasing temperature because there is more thermal energy available to reach the activation energy necessary for breaking bonds between atoms."
"A reaction may be classified as redox in which oxidation and reduction occur or non-redox in which there is no oxidation and reduction occurring."
"Reactions often consist of a sequence of individual sub-steps, the so-called elementary reactions, and the information on the precise course of action is part of the reaction mechanism."