CHEMICAL EQUATIONS
combustion
7th GT SCIENCE PERIOD 2
Combustion is a chemical change in fuses, fires, light bulbs, anything with a combustible material, oxygen, and heat. It happens everywhere a fire is, or even when a gun fires, without our realizing it.
COMBUSTION
CHEMICAL EQUATION
REACTANTS
Reactants are the chemicals or elements that are mixed together to create the product. In the formula for Combustion, the reactants consists of 1 methane molecule(CH4), 2 oxygen molecules(2O2), and carbon dioxide(CO2).
YIELDS
A yield is what goes into the reactants to cause the chemical change. In this case, the yield for combustion would be heat, an energy. Of course, the heat has to be of a certain temperature to cause it.
PRODUCTS
The product is the end result of the chemical reaction. Combustion's end result would be fire, but that is a false statement. It actually makes 1 carbon dioxide molecule(CO2), and 2 water molecules(2H2O)
THE LAW OF CONVERSATION OF MASS
The law of conversation of mass is the idea that matter(the thing the universe is made of) cannot be created or destroyed. So, any equation must have the same amount of matter on each side. This is a balanced equation. It means that the equation can and will happen on earth, as in rust, digestion, COMBUSTION, and many other natural chemical changes.
Balanced
The equation above(combustion) is balanced because both sides of the equation have the same amount of total elements. To find out if an equation is balanced, separate the reactant's elements and write them under the equation. BE SURE TO USE COEFFICIENTS AND SUBSCRIPTS!!! Then do the same thing to the products. Compare your answers, do both sides have the same amount of Elements?? If so, it is a balanced equation.