This document discusses how to balance chemical equations by ensuring that the number of atoms of each element are equal on both sides of the reaction arrow. It explains key terms like reactants, products, and coefficients. It also provides examples of unbalanced chemical equations and directs the reader to balance them by adding coefficients to the appropriate reactants or products.

1. BALANCING CHEMICAL
EQUATION

2. Reactants
-is a substance that is present at
the start of a chemical reaction.
Product
-is the substance to the left of arrow
in a chemical equation.

4. Coefficient- is the number of moles of
compound or component and is a
multiplier to the number of atoms of
each elements of the compound.

5. How to balance Chemical
Equation
1. Check if the number of atoms in the reactant is
equal tothe number of atoms in the product.
2. Make a table to compare the list of number in the
reactant and Product.
3. Add coefficient to make it balance.
4. Check if the given equation is balance.

6. 1. ___MnO₂ + ____HCl → ___MnCl₂ + __H₂O +__Cl₂
2. ___ ZnS + __O₂ + ___HCl → ___ ZnO + ___SO
3. ____Cu + ___ AgNO₃ → ___ Cu(NO)3 + ___Ag
4. ___HCl + ___CaCO₃ →___CaCl₂ + ___ H₂O+___CO₂
5. ___ Na₂SO₄ +_____BaCl₂ →___BaSO₄ + ____NaCl
Direction Balance the given equations by adding the coefficient in each blank.