1. Chemical Reactions & Chemical Equations

2. Chemical Reactions Chemical Change
A process involving a substance or substances changing into a new substance or substances

3. Evidence of a chemical reaction
Chemical Reactions
Evidence of a chemical reaction

4. Evidence of a chemical reaction
Chemical Reactions
Evidence of a chemical reaction
1) A permanent color change
2) A gas is produced
3) Energy is exchanged
4) A precipitate is produced

5. Chemical Equations
A statement using chemical formulas to describe the identities and relative amounts of reactants and products involved in the chemical reaction

6. Reactant(s)  Product(s)

7. 2 H O2  2 H2O
H2 + H2 + O2  H2O + H2O

8. NH4OH + Ni(NO3)2  NH4NO3 + Ni(OH)2