Balancing Chemical Equations

Front

What are the two sides of a chemical equation called?

Back

Reactants (left) and Products (right)

Front

Which side of a chemical equation is the reactant side?

Back

Left (before the yields sign)

Front

What coefficients are needed to balance the reaction: KNO3 --> KNO2 + O2?

Back

2, 2, 1

Front

Which side of a chemical equation is the product side?

Back

Right (after the yields sign)

Front

How many atoms are there TOTAL in H2SO4?

Back

7

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What does it mean to balance a chemical equation?

Back

To ensure that the number of atoms for each element is the same on both sides of the equation.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a coefficient in a chemical equation?

Back

A number placed in front of a chemical formula to indicate the number of molecules or moles.

Front

What is the purpose of balancing chemical equations?

Back

To accurately represent the quantities of reactants and products involved in a reaction.