Top Five Things That Affect The Rate Of A Chemical Reaction

By increasing the surface area of the reactant, more particles are exposed to the other reactant.

A chemical reaction is a process that involves change of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction. The key concepts of a chemical reaction are:

Chemical reactions make new things by rearranging other things. In a chemical reaction, the main change that occurs relates to the way atoms are bonded to each other, in order to change those connections, bonds must be broken and new bonds be formed.

A chemical reaction is a process by which atoms of one or more substances are rearranged to form a different substance. Six types of chemical reactions are Synthesis, Combustion, Decomposition, Single Replacement, Double Replacement, and Acid/Bases. Each of these does something different, some combine to make a new product and some break down to make new products. Synthesis reaction is a type of reaction in which multiple reactants combine to form a single product. A description of Synthesis reaction would be taking a mystery element, called “A” and combining it with “B” and the new product would be what you get when you combine those two elements (AB). An experiment you can do to help with your understanding of Synthesis is making slime because you are using multiple reactants(glue, borax, and water) to create a single new product(slime). Two real life examples of Synthesis reaction is water and your lungs. The product of Carbon mixed with Oxygen is CO2, which is found in your lungs. Water is a synthesis reaction because it is a product of Hydrogen and Oxygen (Anne Helmenstine, Synthesis Reactions and Examples, 2017).

There's a variety of different types of chemical reactions, but the ones I'm going to name down low are the main points of chemical reactions. The names of the different types of reactions is Decomposition, Combustion, Acid/base,Synthesis,Single-Replacement, Double- Replacement and Precipitation. Decomposition is one of the eight chemical reactions. Decomposition is when you get something complex and break it down into smaller molecules. Decomposition is the opposite of synthesis reaction.

Introduction: In all matter there are small substances, called molecules. When two of these molecules collide with sufficient energy, there is a chance of a successful chemical reaction, this is the collision theory. These chemicals reactions are effected by a variety of outside factors and the duration for a reaction to occur is called the reaction rate. Reaction rate can be measured once the product has been created or when the reactant is spent. (Collision theory and rates of reaction, 2013)

Chemical reactions occur at different rates. In this experiment I will consider some of the key factors that influence the rate of a reaction:

A chemical reaction is the process by which atoms or groups of atoms are redistributed, resulting in a change in the molecular composition of substances. The reaction rate is how quickly a reaction occurs and this can be affected by four different factors:

Speed of a chemical reaction may be defined as the change in concentration of the products per unit time. (chem.libretexts). A rate law expresses the reaction rate as a function of the concentration of each reactant. The rate at any instant is proportional to the product of the molar concentrations of the reactants, each concentration raised to an experimentally determined exponent. For a general equation of the form

Reactions occur everywhere, and they may take decades, such as fossils, or only seconds, such as lighting a match to occur. “Chemical kinetics concerns the rates of chemical reactions” and what factors affects these rates (Iodine Clock, 2017). “Temperature, concentration, pressure of reacting gases, surface area of reacting solids and the use of catalysts are all factors which affect the rate of a reaction” (Bbc.co.uk, 2017). This is because they affect the reaction roles and yields of activation energy, product management and reactant management (William, 2017). This is accomplished by “making changes to the concentration, pressure or temperature of a reaction to alter the position of the equilibrium” (Bbc.co.uk, 2017).

A “Chemical Reaction” is where substances interact, producing a chemical change and altering their original molecular or ionic structure to a new one having a different chemical identity.

A physical reaction is a reaction that rearranges the molecules but doesn’t affect the original structure. This means the reaction is reversible and therefore can be returned back to its original state. When a physical reaction occurs, no new substances are formed but a change of state is involved. Boiling water, crushing a can, melting an ice cube and moulding clay are all good examples of physical reactions.

Background Information: A chemical reaction is the change of a substance into a new one that has a different chemical identity (Chemical Reaction , 2015). It rearranges the atoms of the reactants to create different chemical elements or compounds. Chemical reactions occur because an atom is trying to get a full outer shell of electrons. A chemical reaction is usually accompanied by easily observable physical effects such as the emission of heat and light, precipitate, gas and colour change (Factors that affect reaction rates, 2015). When a chemical reaction is complete there will be stability, no further charge and no energy being released or absorbed. The rate of a chemical reaction is the speed at which the reaction occurs. Some reactions are essentially instantaneous while other may take decades. The factors that influence that the rates of chemical reactions include the temperature, the solvent, surface area and the presence of a catalyst (Factors that affect reaction rates, 2015) . Temperature increases the average kinetic energy making it move faster and collide more frequently, increasing the reaction rate (Reaction Rates, 2015). Solvent viscosity is the density and thickness of the solution. The more viscous the fluid, the more dense it will be and so it will take longer to diffuse causing the reaction time to be slower (Factors that affect reaction rates, 2015). The surface area is increased by grinding or cutting the substance into smaller pieces. If the surface

Here, m and n are called –reaction order, k is called- rate constant which depends on temperature.

The rates at which reactions occur depend on the composition and the temperature of the reaction mixture. Usually the rate of reaction is found to be proportional to the concentrations of the reactants raised to a power.1 There are many reactions that have a rate law in the form of: