## Equation for Success

A chemical equation is a shorthand statement that uses chemical formulas to describe a chemical reaction. From the burning of gasoline in a car motor to the digestion of an apple, whenever a chemical reaction takes place, it must have certain qualities that make it work. There must be reactants, the chemicals that initially come into contact; and there must be products, the new substances that are formed when atoms combine chemically with other atoms.

2H2 + O2 --> 2H2O

This simple equation describes the combination of oxygen and hydrogen to form water. The coefficients in front of the hydrogen and water formulas make the equation balanced, and they are there to express the amount of each reactant and product needed to make the equation true.

Balance the following equations.

a. C2H2 + O2 --> CO2 + H2O

b. NaCl --> Cl2 + Na

c. Ti + N2 --> Ti3N4

2H2 + O2 --> 2H2O

This simple equation describes the combination of oxygen and hydrogen to form water. The coefficients in front of the hydrogen and water formulas make the equation balanced, and they are there to express the amount of each reactant and product needed to make the equation true.

**Journal # 24**Balance the following equations.

a. C2H2 + O2 --> CO2 + H2O

b. NaCl --> Cl2 + Na

c. Ti + N2 --> Ti3N4