Describing Chemical Reactions

Table of Contents
1) Describing a Chemical Equation
2) How to Classify A Chemical Equation
3) Extra Normal Video
4) Conservation of Mass
5 Balancing Chemical Equations
6 Reactions between Atoms
7 Chemical Changes and Reactions
8 Production of a Chemical Reaction
9) Toon Doo
10) Resources

Describing a Chemical Equation:

A chemical equation is a short easy way to show a chemical reaction using symbols instead of words. This means that all chemical equations use different formulas to represent substances in a reaction. In an equation, there can be a number of substances. The substances that you begin with are known as the reactants. These substances react to produce new substances. The new substances that are produced during the reaction are known as the products. These are the two parts of a chemical equation (Frank, Miller, and Little).

How to Classify a Chemical Equation:

There are three different types of chemical reactions. One of the three types of reactions is called replacement. Replacement is when one element replaces another in a compound or when two elements trade places. A second type of a chemical reaction is decomposition. This is when substances on the reactants side of the equation break apart to make a more simple substance. The last chemical reaction is called synthesis. Synthesis is when two or more elements combine to make a more complex substance. All the three types of reactions represent a different way to balance an equation (Frank, Miller, and Little).


Conservation of Mass:

The conservation of mass states that during chemical reactions, matter is not created or destroyed. An example of conservation of mass would be iron and sulfur reacting to form iron sulfide. There is also a principle that goes along with the conservation of mass also. The principle states that in a chemical reaction the total mass of reactants must equal the total mass of products. This could be showed by all the atoms being the same, but are grouped differently. Conservation of mass also has a closed system and an open system. A closed system is when matter is not allowed to enter or leave, while an open system can have matter enter or escape any surroundings. Substances are being created during both of these systems and some of the substances won’t be able to produce during the processes (Frank, Miller, and Little).

Open and Closed Systems
Open and Closed Systems

Balancing Chemical Equations:

Balancing chemical equations aren’t always as easy to balance as they seem to be. To balance a chemical equation, the chemical equation has to show the same number of atoms on both sides of the expression. An easy way to do this is to add coefficients before the reactants and before the products. The coefficients are used to multiply the amount of an element on each side of the equation. An example of coefficients is when you have to have the same number of hydrogen atoms on each side with coefficients that would balance out the equation. The simplest way to think of a coefficient is by thinking of a factor in a multiplication problem. By using all these steps, balancing chemical equations will be as simple as could be (Frank, Miller, and Little).

"(Balancing Equation)"
"(Balancing Equation)"

Reactions between Atoms:
There are 90 kinds of chemcial atoms on this this earth today. Some of the different kinds of atoms react more strongly than some other kinds of atoms do. For example, atoms on the left side of the periodic table react stronger than the atoms do on the right side of the periodic table. Atoms can also gain, share or lose electrons depending on the element they are reacting with. Atoms doing these features results of electrons in the outer parts of an atom. Also, when a molecule breaks apart, atoms are then released. When atom rejoin together new substances are formed (Cooper).

Chemical Changes and Reactions:
Chemical changes occur between all reactions within different elements. Oxygen is a part of a chemical change because it can break down food for energy for the bodies processes. This is then used in everyday life making light easy for us to see at night and heat to keep us warm when it's cold. There are other different kinds of particles such as muons, gluons, and gravitons.
Meanwhile, there are six kinds of quarks. Those six quarks are up, down, strange, charmed, bottom, and top. These six quarks have fractions of charges for electrons depending on the type of quark it is ( 4 Queen Street, New York).


Production of a Chemical Reaction:
Having different forms of chemical reactions can result in different productions depending on the type of chemcial reaction. An example of this could be an electric current traveling through water and then obtaining a new mixture of oxygen and hydrogen gases. Two different kinds of types of gases can combine together to form a production from a chemical reaction. All chemical reactions as listed above has reactants and products. For example, if there are two reactants that make a product, the product is a different element than the reactants. All reactants and and products are in all chemical equations representing all different types of chemical reactions. You will constantly get different reactants from products in alot of chemical equations, making production of different substances form together to make one substance (Newton).

fire, burning


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Frank, David, Steve Miller, and John Little. Classifying Chemical Equations. Upper Saddle River, New Jersey: Pearson, 2009. Print.

"How to Classify a Chemical Equation." Xtranormal. Web. 23 May 2010. <>.

Frank, David, Steve Miller, and John Little. Conservation of Mass. Upper Saddle River, New Jersey: Pearson, 2009. Print.

Frank, David, Steve Miller, and John Little. Balancing Chemical Equations. Upper Saddle River, New Jersey: Pearson, 2009. Print.

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Trefil, James. Science and Technology. New York: Routledge, 2001. Print.

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Christopher , Cooper. Physical Matters. 10. 2001. 27. Print.