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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