Activity-Identifying Substances Activity-Identifying Substances using universal indicator paperusing universal indicator paper

SubstanceSubstance ColorColor

1. Vinegar

2. Apple juice

3. Diet Coke

4. Lavender Pine Sol

5. Liquid soap

6. Tap Water

7. Hydrochloric acid

Lesson 3 How are chemical properties

used?

chemical properties can be used to:

1. separate mixtures & substances

2. separate elements from solutions

Limestone can be separated from fossils by

using vinegar.

Vinegar dissolves only the limestone, not the fossil.

ore• rock that include metals combined with

other substances

ex. iron ore- when heated produces pure iron & CO2

2FeO + C 2Fe + CO2

iron oxide + carbon iron + carbon dioxide

What kind of reaction is this?

acids & bases

acids & bases

• have chemical properties to help identify them

• strong ones react more easily than weak ones

• chemicals react in universal indicator paper

flame test• material heated to high temp. in flame

• different substances cause different color flames

lithium copper