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Reactants
Starting materials in a chemical reaction.
Products
Ending materials in a chemical reaction.
Exothermic reactions
Reactions that release heat.
Endothermic reactions
Reactions that absorb heat.
Law of Conservation of Mass
the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.
Law of Constant Proportions
a chemical compound always contains exactly the same proportion of elements by mass
Acids
Substances that donate hydrogen ions (H+).
Bases
Substances that accept hydrogen ions (H+).
Neutralization
Acids and bases react to form a salt and water.
Chemical indicators
Substances that change color in acidic or basic solutions.
use of acid in everyday life
vinegar, soft drinks, and dye
use of bases in everyday life
drain cleaner, toothpaste and chewing gum
Chemical salt
Compound formed from the reaction of an acid and a base.
Precipitation
Formation of a solid when two solutions are mixed.
Metal displacement
More reactive metal replaces a less reactive metal in a compound.
Prediction
Anticipating the formation of a precipitate based on solubility rules.
Factors affecting reaction rate
Temperature, concentration, and surface area influence reaction speed.
Note 
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