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Chemical Property Characteristics that gives a substance the ability to undergo a change that results in a new substance.
Chemical Change Changes in the identity of a substance due to its chemical properties/ not reversible; only sometimes/ rate of reaction influenced by temp, concentration and exposed surface.
Slow Oxidation Occurs at ordinary temp/ produces no light/ no noticeable heat.
Fast Oxidation Occurs rapidly/ burning of a materiel/ produces light/ noticeable heat.
Food Spoilage Oxidation process or enzyme action/ meat and fruit enzymes breakdown tissues unless inactivated (stopped)/ oxidation is caused by the oxygen in the air.
Energy Released or absorb during a chemical reaction.
Endothermic Reaction Absorb heat energy.
Exothermic Reaction Releases heat energy.
Inhibitor Slows down a chemical reaction.
Catalyst Speeds up a chemical reaction
Activation Energy Energy need to get a reaction started.
Law of Conservation of Mass By Antoine Lawoisier/ matter cannot be created nor destroyed.
PH Scale Power of Hydrogen or potential Hydrogen/ determines the acidity or base of a solution/ PH scale ranges from 0-14 Acid=0- 6.9 Neutral=7 Base= 7.1- 14
Indicator Substance that changes color at different PH levels.
Acids 0-6.9/ sour taste/ often corrosive/ conduct electricity(electrolyte)/ used in pickling (removes impurities from metals)/ neutralizes base/ turns blue litmus paper red or pink/ reacts with some metals to produce hydrogen gas/ produces H+ ions.
More for Acids most acids have formulas that start with H/ Form hydroponic ions (H30+) when dissolved in water.
Base 7.1-14/ bitter taste/often corrosive/ conduct electricity/ feels slippery and slimy/neutralized acid/ turns red limtus paper blue/ produces OH- ions/ Produces hydroxide ions when bases mix with water./many bases formulas end in OH.
Neutralization Reaction Both substance lose their distinctive properties/ a salt and water are created/ a salt is an ionic compound that forms when a metal ion replaces the hydrogen ion of an acid
Created by: alliesolome2003